I was able to request an enterprise token in my local server.
But when I moved to linux remote server (aws), I keep getting invalid_grant error when requesting for an Enterprise Token. It says "Please check the 'sub' claim". I'm using the same enterprise id used in my local server.
I've added a separate public key and made sure it was set up properly in my code with the corresponding private key and password. I'm using Boxr client and this is the error:
Boxr::BoxrError: 400: {"error":"invalid_grant","error_description":"Please check the 'sub' claim."}
from /data/medifi/shared/bundle/ruby/2.1.0/gems/boxr-1.2.0/lib/boxr/auth.rb:90:in `auth_post'
from /data/medifi/shared/bundle/ruby/2.1.0/gems/boxr-1.2.0/lib/boxr/auth.rb:24:in `get_tokens'
from /data/medifi/shared/bundle/ruby/2.1.0/gems/boxr-1.2.0/lib/boxr/auth.rb:32:in `get_enterprise_token'