curl -X POST 
http://192.168.88.98/v3/access/users/authenticate 
-d '{"username":"admin","password":"admin"}' 
-H "Content-Type:application/json"

{
"access_token":"eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJhZG1pbiIsImV4cCI6MTc2MTE0MDc2OX0.LHKoRq8loF2BbnMgFVc5SI047J0yBIAmZGtE7t-qsU4",
"token_type":"bearer"
}

curl -X POST 
http://192.168.88.98/v3/access/users/authenticate 
-d '{"username":"admin","password":"admina"}' 
-H "Content-Type:application/json"

{"message":"Authentication was unsuccessful."}