curl --location --request POST 'https://api.mokahr.com/api-platform/v1/open-platform/exam/balance' \
--header 'Authorization: Bearer 6efe04cbc4b00ed85e2d8e9d3e8e622de435e55a' \
--header 'Content-Type: application/json' \
--data-raw '{"discount": 0.4,"balance": "100","freeCount": 5, "appId": "fabd076f-1a0f-4fa8-8a5c-306d264e3df1"}'{}