Error SEND data from API

Hello!

We are sending a message, from API (DeviceQueueService)

{
“deviceQueueItem”: {
“confirmed”: false,
“data”: “EAkAAAABw7/CiEs=”,
“devEUI”: “0095690e000000e2”,
“fCnt”: 0,
“fPort”: 10,
“jsonObject”:"{“Data”:[1,2,3]}",
}
}

I constantly receive this error:

{
“error”: “invalid character ‘}’ looking for beginning of object key string”,
“message”: “invalid character ‘}’ looking for beginning of object key string”,
“code”: 3,
“details”: []
}

Response Code: 400
{
“status”: “400”,
“date”: “Mon, 11 Mar 2019 09:22:01 GMT”,
“content-length”: “175”,
“content-type”: “application/json”
}

Response Class (Status 200)

Could you help me with this error?

Thank you

See https://forum.loraserver.io/t/what-does-the-jsonobject-mean-in-devicequeue-post-api/3706.