curl --request POST \
  --url https://{yourDomain}/api/service/webhook-event/refund.initiated \
  --header 'Content-Type: application/json' \
  --data '{
  "id": "<string>",
  "type": "refund.initiated",
  "date": "<string>",
  "payload": {
    "id": "<string>",
    "amount": 1,
    "currency": "EUR",
    "status": "initiated",
    "orderId": "<string>"
  }
}'