{
  "event_id": "yc-evt-2026-05-30-00091",
  "event_type": "object_storage.created",
  "bucket": "client-docs",
  "object_key": "incoming/report-1042.pdf",
  "occurred_at": "2026-05-30T10:00:00Z",
  "metadata": {
    "tenant_id": "acme",
    "source": "yandex-cloud-functions"
  }
}