Sending HTTP command in automation action

Try this

shell_command:
  play_clip1: 'curl -X POST "http://user:[email protected]/axis-cgi/virtualinput/activate.cgi?schemaversion=1&port=1"'

Or a rest command:

rest_command:
  play_clip:
    url: "http://192.168.1.155/axis-cgi/virtualinput/activate.cgi"
    userame: user
    password: pass
    payload: "schemaversion=1&port=1"
    verify_ssl: false
    method: post