{
"subBody": "string",
"subFeeType": "ASSIGN_MERCHANT",
"subMerchantFee": "string",
"subMerchantId": "string",
"subOrderAmount": "string",
"subPayChannelOrderNum": "string",
"subPayOrderType": 0,
"subSourceOrderNum": "string",
"subTradeNum": "string"
}