分享：toB预支付参数(分享：toB预支付参数)

{
    "accountTypeId": 0,
    "buyerPayModeCode": "string",
    "buyerPayModeName": "string",
    "chainId": 0,
    "currency": "string",
    "currentOrgType": "string",
    "customerMemberRuleId": 0,
    "dxPayType": "string",
    "dxPickupOrderCode": "string",
    "extJson": "string",
    "merchantId": "string",
    "openId": "string",
    "orgId": 0,
    "otherRecPaySpecialType": "VIP_PURCHASE",
    "payApplication": "string",
    "payChannelType": "ALI_SPECIAL_MCH",
    "payIntention": "ACTIVE",
    "payScene": "DIRECT_PAY",
    "payTerminal": "APP",
    "productDesc": "string",
    "redirectUrl": "string",
    "referBillCode": "string",
    "referBillType": "BALANCE_TOP_UP",
    "sourceBizType": "BALANCE_TOP_UP",
    "sourceOrderNum": "string",
    "subTradeOrders": [
        {
            "subBody": "string",
            "subFeeType": "ASSIGN_MERCHANT",
            "subMerchantFee": "string",
            "subMerchantId": "string",
            "subOrderAmount": "string",
            "subPayChannelOrderNum": "string",
            "subPayOrderType": 0,
            "subSourceOrderNum": "string",
            "subTradeNum": "string"
        }
    ],
    "tenantId": 0,
    "totalAmount": "string",
    "version": "DEFAULT_VERSION",
    "wxSubAppId": "string",
    "wxSubAppIdType": "string"
}