{
  "merchantId": "41a77f74-8b67-4f04-be50-c8dd5ad8836f",
  "customerId": "Abcam",
  "status": "EXPIRED",
  "paidAmount": 1005,
  "currency": "GBP",
  "storeDetails": {
    "id": "ee39ecfa-e336-461c-a957-1adc76ac087c",
    "address": "Welwyn Garden City, Hertfordshire",
    "locationName": "DEFAULT"
  },
  "orderId": "003decb3-c35",
  "paymentRequestId": "6d1803f8-038a-48f3-8cd4-b44d37a3ab91",
  "signatureHash": "1ea6ff07ca90ec4ca34dfd3b420dcdfe5db2d73e3a5de05e5379e8aa325a5e2e",
  "redirectUrl": "https://paywithatoa.co.uk",
  "redirectUrlParams": "{}"
}

Delivered when a payment request expires before the customer pays. Expiry time is set via the expiresIn parameter when creating the payment request.

V2 Webhook Signing: If you have enabled V2 webhook signing, the signatureHash and signature fields are removed from the payload and an eventType field is added. The webhook signature is delivered in the X-Atoa-Signature HTTP header instead.