{"timestamp":"2026-03-14T13:10:01Z","event":"invoice.created","delivery_id":"wh_1001","status":"delivered","attempt":1}
{"timestamp":"2026-03-14T13:10:03Z","event":"invoice.updated","delivery_id":"wh_1002","status":"retrying","attempt":2}
{"timestamp":"2026-03-14T13:10:07Z","event":"invoice.paid","delivery_id":"wh_1003","status":"delivered","attempt":1}