Delete row 470883 from events

seq 470883
id evt_288964fb8e9e
kind signal_ingest
ts 2026-04-21T12:14:29.554757+00:00
actor collector:opportunity_research
subject_entity_ids []
payload {"created_at":"2026-04-21T12:14:29.554 ...
source_ref targeted_research:case_467805083c028d50
confidence 0.6
dedupe_key opportunity_research_snapshot:d854b86e6a83d2e4
episode_id NULL
created_at 2026-04-21T12:14:30.685952+00:00
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