{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://api.qualtrics.com/schemas/EventSubscriptionHookSchema.json",
  "title": "EventSubscriptionHookSchema",
  "type": "object",
  "properties": {
    "$content-type": {
      "type": "string",
      "default": "application/x-www-form-urlencoded"
    },
    "$content": {
      "type": "string"
    },
    "$formdata": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "key": {
            "type": "string"
          },
          "value": {
            "type": "string"
          }
        },
        "required": [
          "key",
          "value"
        ]
      }
    }
  }
}