Delete row sig_473ef041d55b from signals

id sig_473ef041d55b
event_id evt_daaa33f48770
watcher_id NULL
signal_type discovery_sec_filing_delta
value {"aggregator_url":"https://www.sec.gov ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_sec_filings
reason_trace {"_evidence_event_ids":["evt_3cbc06cd7 ...
dedupe_key signal_enriched:discovery_sec_filing_delta:92e4cc4 ...
throttle_s 0
created_at 2026-04-09T03:12:49.786272+00:00
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