FlowItem

{
    "fundFlowId": "string",
    "orderId": "string",
    "businessType": "string",
    "merchantId": "string",
    "cardWalletId": "string",
    "balanceBefore": 0,
    "fundDirection": "string",
    "amount": 0,
    "currency": "string",
    "balanceAfter": 0,
    "createTime": "string"
}