Delete row 478444 from events

seq 478444
id evt_33af48934e21
kind signal_ingest
ts 2026-04-22T03:14:44.520249+00:00
actor collector:opportunity_research
subject_entity_ids []
payload {"created_at":"2026-04-22T03:14:44.520 ...
source_ref targeted_research:case_153eb906c67c6c0b
confidence 0.6
dedupe_key opportunity_research_snapshot:5cd5010d71663063
episode_id NULL
created_at 2026-04-22T03:14:45.900948+00:00
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