Error: Grant credentials are invalid

Hello 

>>>>>

curl -L -X POST "https://<companyboxurl>/oauth2/token"
-H "Content-Type: application/x-www-form-urlencoded"
--data-urlencode "client_id=<client_id>"
--data-urlencode "client_secret=<client_secret>"
--data-urlencode "grant_type=client_credentials"
--data-urlencode "box_subject_type=enterprise"
--data-urlencode "box_subject_id=<enterprise_id>"
>>>>>>
I set up app like this

my client id is fxwqim58fbefcy9uafv56o497yowjatg

thanks