{
  "actionType": "append",
  "entities": [
    {
      "id": "Higro2000",
      "type": "Higrometer",
      "humidity": {
          "type": "Percentage",
          "value": "16",
          "metadata": {
              "TimeInstant": {
                  "type": "DateTime",
                  "value": "2018-06-13T13:28:34.611Z"
              },
              "unitCode":{"type": "Text", "value" :"Hgmm"}
          }
      },
      "TimeInstant": {
          "type": "DateTime",
          "value": "2018-06-13T13:28:34.611Z"
      }
    }
  ]
}