I have LoRa sensors which send measures with Cayenne LPP format payload.
My Gateway(LOrank8v1) catches these packets and converts them to UDP.
In the gateway there is a service(lora-gateway-bridge) which converts the packets from UDP to TCP/MQTT.

Then the MQTT packets are published to the mosquitto MQTT broker in the cloud.
Then i run lora-server and lora-app-server services in order to decrypt,decode and deduplicate the packets.

Then i publish the decrypted information to the MQTT broker again.
Here is an example of a publication after all these operations:
application/1/node/0000000000000000/rx 

```
{
 "applicationID":"1",
  "applicationName":"Temperature-Humidity",
  "deviceName":"Temperature-Humidity",
  "devEUI":"0000000000000  000",
  "rxInfo":[
    {
      "mac":"1dee18c14948a955",
      "rssi":-27,
      "loRaSNR":9.5,
      "name":"1dee18  c14948a955",
      "latitude":0,
      "longitude":0,
      "altitude":0
    }
  ],
  "txInfo": {
    "frequency":8685  00000,
    "dataRate": {
      "modulation":"LORA",
      "bandwidth":125,
      "spreadFactor":9
    },
    "adr":false,
    "codeRate":"4/5"
  },
  "fCnt":2,
  "fPort":1,
  "data":"AGcAxQFojA==",
  "object": {
    "temperatureSensor": {
      "0":19.7
    },
    "humiditySensor": {
      "1":70
    }
  }
}

```

Now i want to use Fiware's JSON/MQTT IOT agent to convert MQTT to NGSI in order to publish data to the Context Broker. 

The data should be publised like this to be readable :

```
$ mosquitto_pub -h $HOST_IOTAGENT_MQTT -u theUser -P thePassword -t /myapikey/mydevicemqtt/attrs -m '{ "t": 19,7, "h": 70}'

```

Has anyone the same problem?
Should i make a JSON parser and republish the data to another format into the MQTT Broker?
How could i deal with this problem?