json_schema: {
      "errorMessage": {
          "uniqueItemProperties": "should NOT contain objects with the same zoneId"
      },
      "items": {
          "additionalProperties": false,
          "properties": {
              "offeringId": {
                  "type": "string"
              },
              "zoneId": {
                  "type": "string"
              }
          },
          "required": [
              "zoneId",
              "offeringId"
          ],
          "type": "object"
      },
      "type": "array",
      "uniqueItemProperties": [
          "zoneId"
      ]
  }