{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "watchId": {
      "type": "string",
      "minLength": 1,
      "maxLength": 200,
      "description": "watch ID from create/list."
    },
    "type": {
      "anyOf": [
        {
          "type": "string",
          "enum": [
            "contextual_citation",
            "guest_post",
            "recommendation",
            "resource_entry",
            "technical_reference",
            "directory_entry",
            "profile_website",
            "author_attribution",
            "discussion_contribution",
            "navigation_template",
            "badge_embed_attribution",
            "partner_sponsor",
            "other"
          ]
        },
        {
          "type": "null"
        }
      ],
      "description": "type; see schema."
    },
    "revision": {
      "description": "Immutable set revision to read/compare.",
      "type": "integer",
      "minimum": 0,
      "maximum": 9007199254740991
    }
  },
  "required": [
    "watchId",
    "type"
  ],
  "additionalProperties": false
}