Create or update user

{
  "type": "object",
  "description": "Update properties of a user",
  "required": [
    "identification"
  ],
  "properties": {
    "identification": {
      "type": "object",
      "description": "User identification requires a userId, email or both",
      "properties": {
        "email": {
          "type": "string",
          "format": "email",
          "description": "Email address of the user"
        },
        "userId": {
          "type": "string",
          "format": "user-id",
          "description": "Unique identifier for the user in your database"
        }
      }
    },
    "properties": {
      "type": "object",
      "description": "The properties being set, possible values are strings, booleans, numbers and datetimes (ISO 8601)"
    }
  }
}