{
  "specversion": "1.0",
  "id": "pms-000501",
  "source": "urn:hos:pms:demo",
  "type": "reservation.updated",
  "time": "2026-07-30T08:00:00Z",
  "datacontenttype": "application/json",
  "hosschemaversion": "0.1",
  "hosrecordedat": "2026-07-30T08:00:00.500Z",
  "hostenant": "tenant_demo",
  "hosproperty": "prop_demo",
  "hospropertytimezone": "Europe/Paris",
  "hosbusinessdate": "2026-07-30",
  "hossubjects": "reservation:res_2210",
  "data": {
    "reservation_id": "res_2210",
    "changed_fields": ["planned_departure_date"],
    "planned_departure_date": "2026-08-03"
  }
}