json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "id": "http://integracja.firefighters.ki.agh.edu.pl",
      "description": "RQ to notification center: confirm/finish notification",
      "type": "object",
      "properties": {
          "id": {
              "id": "http://integracja.firefighters.ki.agh.edu.pl/id",
              "type": "string"
          },
          "state": {
              "id": "http://integracja.firefighters.ki.agh.edu.pl/state",
              "type": "string",
              "enum": [
                  "CONFIRMED",
                  "FINISHED"
              ]
          }
      },
      "additionalProperties": false
  }