Automation for System error

Good morning,

today I tried to get this automation to work:

automation:
  - alias: "Create notifications for "service" errors"
    trigger:
      platform: event
      event_type: system_log_event
    condition:
      condition: template
      value_template: '{{ "service" in trigger.event.data.message[0] }}'
    action:
      service: persistent_notification.create
      data:
        title: Something bad happened
        message: "{{ trigger.event.data.message }}"

This is the automation example from https://www.home-assistant.io/integrations/system_log/

The dire event is true.
If I tried to save this automation there is this error:
Message malformed: required key not provided @ data[‘action’]

Hope someone can help