notify_url,包含支付、代付生命周期事件和拒付预警事件(type = 7,event_type = chargeback_alert.created)。处理前必须验证 sign,拒付预警按 alert_id 幂等,事件可靠接收后返回 HTTP 200。详见 支付回调说明、拒付预警回调 和 签名计算。curl --location --globoff '{{notify_url}}' \
--header 'Content-Type: application/json' \
--data '{
"type": 0,
"merchant_id": 1,
"order_no": "payout0003",
"order_amount": 106,
"paid_amount": 106,
"balance_amount": 100,
"fee": 6,
"pay_time": "2025-08-05 16:43:55",
"status": 5,
"reason": "success",
"sign": "f561287c9cf9a5af17a97c826af44f6e"
}'{}