Free transfer wallet query V2

* Request address: /api/server/walletBalance

* Request protocol: POST

* Request parameters:

Field name type Must-choose illustrate
playerId string yesPlayer account
currencystringyesCurrency code, CNY: RMB, USD: USD, HKD: Hong Kong dollar, PHP: Philippine peso

*Return to example:

{
"code": 10000, // Status code
"msg": "request succeeded", // Message
    "data": {
"balance": 100.00 // Balance
            }
}