curl --request POST \
--url https://synthx.vantisone.com/api/oauth/token \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data 'grant_type=<string>' \
--data 'client_id=<string>' \
--data 'client_secret=<string>' \
--data 'refresh_token=<string>'