curl --location --request POST 'http://prod-cn.your-api-server.com/gateway/base/biz' \
--header 'method: balance' \
--header 'signType: SHA512' \
--header 'serviceName: api.pay' \
--header 'mchId: 1416010331032883200' \
--header 'timestamp: 1631671670' \
--header 'sign: 32554324534545432543' \
--header 'Content-Type: application/json' \
--data-raw '{
"currency":"BRL"
}'{
"resultCode": "000000",
"errorCode": "000000",
"errorMsg": null,
"data": [
{
"balance": 148.81,
"currency": "BRL"
}
]
}