Automation with z2m non-legacy triggers to dim light

Configuration
1

Hi,

I am trying to set up a simple automation but using non-legacy homeassistant automation triggers via zigbee2mqtt. I have a switch that can recognize long-press and emit events like:

zigbee2mqtt/TripleSwitch/action button_1_hold
zigbee2mqtt/TripleSwitch/action button_1_release

and I simply want to increase a brightness for the time the button is being pressed (until it’s released). I am trying something like:

alias: New Automation
description: ''
trigger:
  - platform: device
    domain: mqtt
    device_id: d54bba99c4c741b8bc41118918730630
    type: action
    subtype: button_1_hold
    discovery_id: 0x04cf8cdf3c7d8f7a action_button_1_hold
condition: []
action:
  - alias: "repeat until button release"
    repeat:
      until:
      - condition: state
        state: button_1_release
        attribute: action
        entity_id: "WHAT'S HERE?"
      sequence:
      - service: light.turn_on
        data:
          brightness_step_pct: -10
          transition: 0.5
        target: light.testzarovka1
      - delay: '0.2'
mode: single

but it doesn’t work as I should have entity_id in the until loop. But there is no entity_id for this mqtt type of trigger :-/ . Any ideas please?