Use MQTT Api

**Is your feature request related to a problem? Please describe.**

hOn have a adicional API using mqtt topics to provide "instant" notification on changes instead of using polling

**Describe the solution you'd like**
Maybe could be added support to mqtt subscriptions to get a more fast update.

**Describe alternatives you've considered**
In first instance, only subscribe to get "any change" on device and then poll new data with REST API instead interval polling.