json_schema: {
      "id": "http://schema.myrtana.sk/beauty.json#",
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "Beauty",
      "description": "Everything beautiful",
      "type": "object",
      "properties": {
          "entity": {
              "enum": [
                  "kitten",
                  "c-beam",
                  "elena"
              ]
          }
      },
      "additionalProperties": false,
      "required": [
          "entity"
      ]
  }