Google assistant does not receiving response

Configuration
1

Hi,

I have a virtual light in home assistant in lights.yaml:

platform: template
  lights:
      light_1:
        unique_id: light.light_1
        turn_on:
          service: rest_command.rest_command_test
          data:
            param_1: "test"
            param_2: "1"
        turn_off:
          service: rest_command.rest_command_test
          data:
            param_1: "test"
            param_2: "0"
        set_level:
          service: rest_command.rest_command_test
          data:
            param_1: "test"
            param_2: "{{ brightness }}"

where in rest_commands.yaml I have:

rest_command_test:
    url: "http://192.168.1.10:4444"
    method: put
    content_type: "application/x-www-form-urlencoded"
    payload: "test:{{ param_1 }} ,{{ param_2 }}"

it is working and I receive rest_command correctly in my ip, but when I light on from google assistant, the rest_command executes correctly but google say that thre is not response from smart home device.

Could I configure the virtual light without state?
so, What do I have to answer to home assistant for the answer to reach Google assistant?

Thanks