How to retrieve unique_id and other properties from a mqtt entity definition?

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Hi everybody.
I am quite new to appdaemon and python but I would like to set a entity state (whitout calling services) in appdaemon according to the entity state I receive from an xml .
the xml I receive is like

<record>
   <dato0>22</dato0>
   <dato1>1</dato1>
</record>
<record>
   <dato0>33</dato0>
   <dato1>0</dato1>
</record>

where dato1 identifies the id of the switch and dato 0 the on/off open/closed status of switch or cover.

I would like to loop into the switches/cover entities and change the status matching the unique_id of the entity that contains the device_id in its name definition.
here my switch definition example:

mqtt:
  switch:
    - unique_id: sw_22
      name: "luce cameretta"
      state_topic: "/00:1a:4e:1b:33:6f/devices/lights/22/state"
      command_topic: "/00:1a:4e:1b:33:6f/devices/lights/22/state"
      payload_on: "1"
      payload_off: "0"
      optimistic: false
      qos: 0
      icon: hass:lightbulb

I am using appdaemon and I would like to set the entities status reading the value from xm, looping through the lights/cover dictionary, with a sentence like :

self.set_state(expected_unique_id, state=stato)

where expected_unique_id is the value that I would like to capture from the entity definition (i.e. unique_id) and stato is the on/off closed/open state of the entity

I tryed to debug the code with :

                self.log("*********debug*********\n") 
                entity_info = self.get_state("switch.luce_cameretta", attribute="all")
                unique_id = entity_info.get('attributes', {}).get('unique_id', None)
                self.log(str(unique_id))

but the code return <class ‘NoneType’> in the log.
hopefully I was clear …
can anyone help me?
Thank you