Delete row 477884 from events

seq 477884
id evt_7e8069444982
kind signal_ingest
ts 2026-04-22T02:09:06.343632+00:00
actor collector:macro
subject_entity_ids []
payload {"created_at":"2026-04-22T02:09:06.342 ...
source_ref treasury.gov
confidence 1.0
dedupe_key macro_yield_curve_snapshot:67ac733dc9aaa5de
episode_id NULL
created_at 2026-04-22T02:09:06.343730+00:00
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