For example:

```
{
  "deviceQueueItem": {
    "confirmed": true,
    "devEUI": "deadbeefdeafbeef",
    "fCnt": 0,
    "fPort": 2,
    "jsonObject": "{\"Control\": \"RELAY\", \"RO1\":1 , \"RO2\":0}"
  }
```

Would set Relay 1 to "ON" and relay 2 to "OFF"