Inspect a content purge

{
  "purge_id": "<string>",
  "request_id": "<string>",
  "attempt": 123,
  "status": "queued",
  "matter_id": "<string>",
  "vault_id": "<string>",
  "workflow_id": "<string>",
  "terminal_event_id": "<string>",
  "failure_code": "<string>",
  "counts": {},
  "requested_at": "2023-11-07T05:31:56Z",
  "started_at": "2023-11-07T05:31:56Z",
  "failed_at": "2023-11-07T05:31:56Z",
  "completed_at": "2023-11-07T05:31:56Z"
}