I’m encountering an issue where my JSON request, which appears to be syntactically correct, is being rejected by an API with the following error message:

`    {
        "name": "WRONG_SYNTAX",
        "message": "Wrong syntax in request: Errors found validating request."
    }`

Here is the JSON payload I’m sending:

`    {
      "devices": [
        {
          "device_id": "temp005",
          "entity_name": "urn:ngsi-ld:Temp:005",
          "entity_type": "Temp",
          "timezone": "Europe/Berlin",
          "attributes": [
            { "object_id": "t", "name": "temperature", "type": "Text" },
            { "object_id": "e", "name": "event", "type": "Text" }
          ],
          "static_attributes": [
            { "name": "refroom", "type": "Relationship", "value": "urn:ngsi-ld:Room:001" }
          ]
        }
      ]
    }`

I verified that the JSON is valid using a JSON validator. the headers are also as follow :

`fiware-service = openiot
fiware-servicepath = /
Accept = application/json`

I created a services group with this payload before :

`    {
     "services": [
       {
         "apikey":      "1068318794",
         "cbroker":     "http://orion:1026",
         "entity_type": "Temp",
         "resource":    "/iot/json"
       }
     ]
    }`

and also provisioned a trusted service group with this payload before :

`    {
         "cbroker":     "http://orion:1027",
         "trust": "c8fbc8ea1aabbadec48a61b8bb5dde01c77256d4"
    }`