Delete row sig_969255eabaf9 from signals

id sig_969255eabaf9
event_id evt_ed0598148cec
watcher_id NULL
signal_type discovery_ipo_delta
value {"aggregator_url":"https://news.google ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_ingestor
reason_trace {"_evidence_event_ids":["evt_46c5e6913 ...
dedupe_key signal_enriched:discovery_ipo_delta:9a072f8db91cbc ...
throttle_s 0
created_at 2026-04-20T13:10:00.946643+00:00
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