Delete row 53355 from events

seq 53355
id evt_03a752d38bef
kind signal_ingest
ts 2026-04-16T01:11:48.302459+00:00
actor daemon:signal_enrichment
subject_entity_ids []
payload {"created_at":"2026-04-16T01:07:13.680 ...
source_ref candidate:sc_b97dd72679298aa0
confidence 0.42
dedupe_key signal_enriched:discovery_earnings_calendar_delta: ...
episode_id NULL
created_at 2026-04-16T01:11:48.302500+00:00
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