{
  "event_id": "evt_example",
  "parent_event_id": null,
  "trace_id": "trace_example",
  "request_id": "req_example",
  "policy_ref": "pol_engineering@3",
  "stage": "input",
  "outcome": "allowed",
  "location": "customer_server",
  "region": "eu",
  "region_evidence": "verified",
  "duration_ms": 12,
  "content_retained": false
}