Hey, it's been a while I generate a token like you described, so I'm not sure.
How about you look at this resource?
from there you can copy the token:
OR you ca ncreate one with the CLI:
I'm not sure about when we should use
-d access_token=<access_token>
versus:
-H "Authorization: Bearer <access_token>"
So I would try one and then the other.
Best of luck!