Delete row 477630 from events

seq 477630
id evt_3ea08895fb46
kind signal_ingest
ts 2026-04-22T01:02:39.226767+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-22T01:02:27.833 ...
source_ref earnings:calendar
confidence 1.0
dedupe_key discovery_earnings_calendar_snapshot:a3c992ec51e7f ...
episode_id NULL
created_at 2026-04-22T01:02:39.227304+00:00
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