Hello.
What I am trying to achieve is to add new user tho systemusers entity.
User doesn't exist in AAD.
I am currently trying to add it via Dataverse API as below:

As far as adding new entries to other tables works this way, not sure I am gonna succeed with this approach when it comes to systemusers entity.
Currently got error with usersetting entity despite of I never tried to populate it.

Has anyone been able to add user this way or has any suggestions about this approach or what details in POST body might be required to succeed?