Getting Notified on Status Change (Nuki via HASSIO)

I am currently trying to get the following use case working on my freshly installed HASSIO-Instance with the virtual Nuki Bridge:

  1. Someone opens the door using the Nuki-App or pushes the button
  2. Receiving a notification by HASSIO by the Home-Assistant App that the door status changed.

Any idea on how to make this working?