Delete row 477506 from events

seq 477506
id evt_9d54e99bcf3f
kind signal_ingest
ts 2026-04-22T00:22:16.865383+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-22T00:20:05.663 ...
source_ref candidate:sc_826fc3e66e6157d7
confidence 0.42
dedupe_key signal_enriched:news_delta:d0703638d292c437
episode_id NULL
created_at 2026-04-22T00:22:16.865442+00:00
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