Did you find any approach to achieve the impersonation? I have exactly the same problem and there is not a clear way to impersonate a specific user (based on email or user id) using exchange token.
Thanks!
Reasons:
Blacklisted phrase (0.5): Thanks
RegEx Blacklisted phrase (3): Did you find any
Low length (0.5):
No code block (0.5):
Me too answer (2.5): I have exactly the same problem