[keycloak-dev] keycloak userinfo

Is it possible to get the user details from the KEYCLOAK_IDENTITY cookie. I tried the following curl command but was getting an error. curl -d "access_token=$KEYCLOAK_IDENTITY" -H "Content-Type: application/x-www-form-urlencoded"  -X POST "http://localhost:8180/auth/realms/demo/protocol/openid-connect/userinfo" {    "error": "invalid_token",    "error_description": "Token invalid: Secret key not set"} Is the token parameter value that is passed incorrect? If so is it possible to get the valid parameter value using the cookies KEYCLOAK_IDENTITY, KEYCLOAK_SESSION, AUTH_SESSION_ID.