Delete row 64470 from events

seq 64470
id evt_6094a8db47e7
kind signal_ingest
ts 2026-04-17T14:06:50.985965+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-17T10:29:00.724 ...
source_ref candidate:sc_065576d469f74d30
confidence 0.28
dedupe_key signal_enriched:market_headline_delta:21acc6e44f6b ...
episode_id NULL
created_at 2026-04-17T14:06:51.056082+00:00
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