MQTT Notify command_template

Configuration
,
1

Hi,
I have successfully set up an MQTT Notify service according to MQTT notify - Home Assistant and it works fine.
However, I have not found a way to get access to any data but the “message” which is stored in the value variable. In particular, I need the “title” of the notification as well.

This is what I want:

mqtt:
  notify:
    - name: "LED Display"
      unique_id: notify_led_display_1
      command_topic: "cmnd/leddisplay/text"
      command_template: "{{title}}:{{value}}"
      qos: 0
      retain: false

which obviously doesn’t work, since there is no title variable defined.
How do I access the title of the notification?