GET: http://localhost:8080/auth/admin/realms/{real-name}/users?username=testUser&exact=true
curl
-H "Authorization: bearer eyJhbGciOiJSU...."
"http://localhost:8080/auth/admin/realms/master/users/349f67de-36e6-4552-ac54-e52085109616"
GET: http://localhost:8080/auth/admin/realms/{real-name}/users?username=testUser