Issue with escape quote

Goodmorning,

we are started to work with Thingworx and Azure using MQTT. 

We have some remote properties that will contain data from the devices, and some others in addition to the twinDesired that the device will need to read.

These two properties should be string (in screenshot pkc_1 and pkc_2) 

The problem is that when we try to retrieve data from device, property appers with escaped 

{\"pkc_1\":\"0,19-02-11 16:56:00\"}

Is there something on twx side we can do to avoid to escape it or this will be send always in this way and we can only parse on device side (low level)

Thank you