Get default actors for project role

{
  "type": "object",
  "description": "Details about the roles in a project.",
  "properties": {
    "actors": {
      "type": "array",
      "description": "The list of users who act in this role.",
      "items": {
        "type": "object",
        "description": "Details about a user assigned to a project role.",
        "properties": {
          "actorGroup": {
            "type": "object"
          },
          "actorUser": {
            "type": "object"
          },
          "avatarUrl": {
            "type": "string",
            "format": "uri",
            "description": "The avatar of the role actor."
          },
          "displayName": {
            "type": "string",
            "description": "The display name of the role actor. For users, depending on the user’s privacy setting, this may return an alternative value for the user's name."
          },
          "id": {
            "type": "integer",
            "format": "int64",
            "description": "The ID of the role actor."
          },
          "name": {
            "type": "string",
            "description": "This property is no longer available and will be removed from the documentation soon. See the [deprecation notice](https://developer.atlassian.com/cloud/jira/platform/deprecation-notice-user-privacy-api-migration-guide/) for details."
          },
          "type": {
            "type": "string",
            "description": "The type of role actor.",
            "enum": [
              "atlassian-group-role-actor",
              "atlassian-user-role-actor"
            ]
          }
        },
        "additionalProperties": false
      }
    },
    "admin": {
      "type": "boolean",
      "description": "Whether this role is the admin role for the project."
    },
    "currentUserRole": {
      "type": "boolean",
      "description": "Whether the calling user is part of this role."
    },
    "default": {
      "type": "boolean",
      "description": "Whether this role is the default role for the project"
    },
    "description": {
      "type": "string",
      "description": "The description of the project role."
    },
    "id": {
      "type": "integer",
      "format": "int64",
      "description": "The ID of the project role."
    },
    "name": {
      "type": "string",
      "description": "The name of the project role."
    },
    "roleConfigurable": {
      "type": "boolean",
      "description": "Whether the roles are configurable for this project."
    },
    "scope": {
      "description": "The scope of the role. Indicated for roles associated with [next-gen projects](https://confluence.atlassian.com/x/loMyO).",
      "type": "object"
    },
    "self": {
      "type": "string",
      "format": "uri",
      "description": "The URL the project role details."
    },
    "translatedName": {
      "type": "string",
      "description": "The translated name of the project role."
    }
  },
  "additionalProperties": false
}