Delete row 351990 from events

seq 351990
id evt_df2555e751ab
kind signal_candidate_ingest
ts 2026-04-20T00:00:14.081266+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-20T00:00:14.081 ...
source_ref earnings:calendar
confidence 1.0
dedupe_key discovery_earnings_calendar_delta:1edd185e9c53a92f
episode_id NULL
created_at 2026-04-20T00:00:31.468956+00:00
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