Delete row 22475 from events

seq 22475
id evt_643c35749295
kind signal_ingest
ts 2026-04-11T10:16:01.570831+00:00
actor collector:opportunity_research
subject_entity_ids []
payload {"created_at":"2026-04-11T10:16:01.570 ...
source_ref web_search:serper
confidence 0.6
dedupe_key opportunity_research_snapshot:1bbedc812071d561
episode_id NULL
created_at 2026-04-11T10:16:03.251229+00:00
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