ERROR: (gcloud.auth.activate-service-account) There was a problem refreshing your current auth tokens: ('invalid_grant: Invalid JWT Signature.', {'error': 'invalid_grant', 'error_description': 'Invalid JWT Signature.'})
Please run:

  $ gcloud auth login

to obtain new credentials.

If you have already logged in with a different account:

    $ gcloud config set account ACCOUNT

to select an already authenticated account to use.