json_schema: {
      "definitions": {
          "null": {
              "$schema": "http://json-schema.org/draft-04/schema#",
              "type": "object",
              "additionalProperties": false,
              "properties": {
                  "Id": {
                      "type": "integer"
                  },
                  "Type": {
                      "type": "null"
                  },
                  "Identity": {
                      "type": "string"
                  }
              },
              "required": [
                  "Id",
                  "Type",
                  "Identity"
              ]
          },
          "ContentItemTypeC": {
              "$schema": "http://json-schema.org/draft-04/schema#",
              "type": "object",
              "additionalProperties": false,
              "properties": {
                  "Id": {
                      "type": "integer"
                  },
                  "Type": {
                      "type": "string"
                  },
                  "Identity": {
                      "type": "string"
                  }
              },
              "required": [
                  "Id",
                  "Type",
                  "Identity"
              ]
          }
      },
      "properties": {
          "null": {
              "$ref": "#/definitions/null"
          },
          "ContentItemTypeC": {
              "$ref": "#/definitions/ContentItemTypeC"
          }
      },
      "required": [
          "null",
          "ContentItemTypeC"
      ]
  }