Problem SONOFF ZBMINI monitoring

Hi there.
I installed a sonoff zbmini, interfaced by zigbee2mqtt; it works ; the problem,
 I can't get the state of zbmini when I order it with physical switch
doesn't work with #state_topic: "zigbee2mqtt/0x00124b00258b06d6/get"

It's "state:" that I would like to retrieve in a sensor or a script, there I don't know how to do it.
Maybe :

zbmini1:
   sequence:
   - service: mqtt.publish
     data_template:
       payload: '{"state":""}'
       topic: zigbee2mqtt/0x00124b00258b06d6/get

But then, what should be done?

Thank you in advance for your assistance.