Update campaign

{
  "type": "object",
  "required": [
    "duration"
  ],
  "properties": {
    "campaign": {
      "type": "object",
      "required": [
        "attachments",
        "channel_type",
        "created_at",
        "defaults",
        "description",
        "id",
        "name",
        "segment_id",
        "sender_id",
        "text",
        "updated_at"
      ],
      "properties": {
        "attachments": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "actions": {
                "type": "array",
                "items": {
                  "type": "object",
                  "required": [
                    "name",
                    "text",
                    "type"
                  ],
                  "properties": {
                    "name": {
                      "type": "string"
                    },
                    "style": {
                      "type": "string"
                    },
                    "text": {
                      "type": "string"
                    },
                    "type": {
                      "type": "string"
                    },
                    "value": {
                      "type": "string"
                    }
                  }
                }
              },
              "asset_url": {
                "type": "string"
              },
              "author_icon": {
                "type": "string"
              },
              "author_link": {
                "type": "string"
              },
              "author_name": {
                "type": "string"
              },
              "color": {
                "type": "string"
              },
              "fallback": {
                "type": "string"
              },
              "fields": {
                "type": "array",
                "items": {
                  "type": "object",
                  "required": [
                    "title",
                    "value",
                    "short"
                  ],
                  "properties": {
                    "short": {
                      "type": "boolean"
                    },
                    "title": {
                      "type": "string"
                    },
                    "value": {
                      "type": "string"
                    }
                  }
                }
              },
              "footer": {
                "type": "string"
              },
              "footer_icon": {
                "type": "string"
              },
              "giphy": {
                "type": "object",
                "required": [
                  "original",
                  "fixed_height",
                  "fixed_height_still",
                  "fixed_height_downsampled",
                  "fixed_width",
                  "fixed_width_still",
                  "fixed_width_downsampled"
                ],
                "properties": {
                  "fixed_height": {
                    "type": "object",
                    "required": [
                      "url",
                      "width",
                      "height",
                      "size",
                      "frames"
                    ],
                    "properties": {
                      "frames": {
                        "type": "string"
                      },
                      "height": {
                        "type": "string"
                      },
                      "size": {
                        "type": "string"
                      },
                      "url": {
                        "type": "string"
                      },
                      "width": {
                        "type": "string"
                      }
                    }
                  },
                  "fixed_height_downsampled": {
                    "type": "object",
                    "required": [
                      "url",
                      "width",
                      "height",
                      "size",
                      "frames"
                    ],
                    "properties": {
                      "frames": {
                        "type": "string"
                      },
                      "height": {
                        "type": "string"
                      },
                      "size": {
                        "type": "string"
                      },
                      "url": {
                        "type": "string"
                      },
                      "width": {
                        "type": "string"
                      }
                    }
                  },
                  "fixed_height_still": {
                    "type": "object",
                    "required": [
                      "url",
                      "width",
                      "height",
                      "size",
                      "frames"
                    ],
                    "properties": {
                      "frames": {
                        "type": "string"
                      },
                      "height": {
                        "type": "string"
                      },
                      "size": {
                        "type": "string"
                      },
                      "url": {
                        "type": "string"
                      },
                      "width": {
                        "type": "string"
                      }
                    }
                  },
                  "fixed_width": {
                    "type": "object",
                    "required": [
                      "url",
                      "width",
                      "height",
                      "size",
                      "frames"
                    ],
                    "properties": {
                      "frames": {
                        "type": "string"
                      },
                      "height": {
                        "type": "string"
                      },
                      "size": {
                        "type": "string"
                      },
                      "url": {
                        "type": "string"
                      },
                      "width": {
                        "type": "string"
                      }
                    }
                  },
                  "fixed_width_downsampled": {
                    "type": "object",
                    "required": [
                      "url",
                      "width",
                      "height",
                      "size",
                      "frames"
                    ],
                    "properties": {
                      "frames": {
                        "type": "string"
                      },
                      "height": {
                        "type": "string"
                      },
                      "size": {
                        "type": "string"
                      },
                      "url": {
                        "type": "string"
                      },
                      "width": {
                        "type": "string"
                      }
                    }
                  },
                  "fixed_width_still": {
                    "type": "object",
                    "required": [
                      "url",
                      "width",
                      "height",
                      "size",
                      "frames"
                    ],
                    "properties": {
                      "frames": {
                        "type": "string"
                      },
                      "height": {
                        "type": "string"
                      },
                      "size": {
                        "type": "string"
                      },
                      "url": {
                        "type": "string"
                      },
                      "width": {
                        "type": "string"
                      }
                    }
                  },
                  "original": {
                    "type": "object",
                    "required": [
                      "url",
                      "width",
                      "height",
                      "size",
                      "frames"
                    ],
                    "properties": {
                      "frames": {
                        "type": "string"
                      },
                      "height": {
                        "type": "string"
                      },
                      "size": {
                        "type": "string"
                      },
                      "url": {
                        "type": "string"
                      },
                      "width": {
                        "type": "string"
                      }
                    }
                  }
                }
              },
              "image_url": {
                "type": "string"
              },
              "og_scrape_url": {
                "type": "string"
              },
              "original_height": {
                "type": "number"
              },
              "original_width": {
                "type": "number"
              },
              "pretext": {
                "type": "string"
              },
              "text": {
                "type": "string"
              },
              "thumb_url": {
                "type": "string"
              },
              "title": {
                "type": "string"
              },
              "title_link": {
                "type": "string"
              },
              "type": {
                "type": "string",
                "description": "Attachment type (e.g. image, video, url)"
              }
            }
          }
        },
        "channel_type": {
          "type": "string"
        },
        "completed_at": {
          "type": "string",
          "format": "date-time"
        },
        "created_at": {
          "type": "string",
          "format": "date-time"
        },
        "defaults": {
          "type": "object"
        },
        "description": {
          "type": "string"
        },
        "details": {
          "type": "string"
        },
        "errored_messages": {
          "type": "number"
        },
        "failed_at": {
          "type": "string",
          "format": "date-time"
        },
        "id": {
          "type": "string"
        },
        "name": {
          "type": "string"
        },
        "resumed_at": {
          "type": "string",
          "format": "date-time"
        },
        "scheduled_at": {
          "type": "string",
          "format": "date-time"
        },
        "scheduled_for": {
          "type": "string",
          "format": "date-time"
        },
        "segment_id": {
          "type": "string"
        },
        "sender_id": {
          "type": "string"
        },
        "sent_messages": {
          "type": "number"
        },
        "status": {
          "type": "string"
        },
        "stopped_at": {
          "type": "string",
          "format": "date-time"
        },
        "task_id": {
          "type": "string"
        },
        "text": {
          "type": "string"
        },
        "updated_at": {
          "type": "string",
          "format": "date-time"
        }
      }
    },
    "duration": {
      "type": "string",
      "description": "Duration of the request in human-readable format"
    }
  }
}