Nuki Pro and how to get attribut "changed by" in home assistant

Hello !

I want to drive an automation in home assistant which reacts to the attribute “changed_by” of
the Nuki Pro.
The Nuki is connected via MAtter over thread.
Now there are only two statuses of the attribute, “Remote” ore “Unspecified”, wether i drive the lock by homeassistant, keypad or fingerprint.
How can i get the statuses “changed_by keypad” or “Changed by fingerprint” ?

Does anybody know ?

Thank you