Cannot enable motion detection on Blink XT2

I am trying to setup an automation to enable the motion detection on an individual Blink camera. But I cannot get it to work. Here is the entry in my automations.yaml. Can anyone help?

  • id: ‘1584838813812’
    alias: Enable Gate Camera
    description: ‘’
    trigger:
    • at: 01:20
      platform: time
      condition: []
      action:
    • data:
      message: Gate Camera Enabled
      entity_id: camera.blink_gate
      service: camera.enable_motion_detection