[keycloak-user] Keycloak JWT modification and logging

Hello All, We use Keycloak standalone system as authentication server. On our client/server side we have just installed the Keycloak Adapter. For certain tests, we need to change the values of *'aud', 'sub', 'nbf', 'exp'* parameters in Json Web Token. Also for one test, we need to send back an unsigned token to the client. Can someone please advise how this can be achieved? Also which logger would I need to set to DEBUG/TRACE in standalone.xml, to be able to see the JWT parameters and their values in the response sent back to client? Thanks in advance. Vrinda