{"database": "audit", "table": "detection_signals", "rows": [[40, "2026-05-21T06:59:36.712497Z", "anom_stat_new_actor", "warning", "klaviyo", "New actor seen: '01KDGNZCNKJEZHDMCQF4Z00GYW' on source 'klaviyo:events:backfill' (store: klaviyo)", "{\"event_id\":9805995,\"actor\":\"01KDGNZCNKJEZHDMCQF4Z00GYW\",\"source\":\"klaviyo:events:backfill\",\"store\":\"klaviyo\",\"first_seen\":\"2026-01-04T18:51:56+00:00\"}", "[9805995]", "new_actor:klaviyo:events:backfill:klaviyo:01KDGNZCNKJEZHDMCQF4Z00GYW", "2026-05-26T22:50:43.845Z", null]], "columns": ["id", "fired_at", "rule_name", "severity", "store", "summary", "payload_json", "related_event_ids", "dedupe_key", "acknowledged_at", "acknowledged_by"], "primary_keys": ["id"], "primary_key_values": ["40"], "units": {}, "query_ms": 1.8761539831757545}