Delete row sig_db968631e142 from signals

id sig_db968631e142
event_id evt_2083f12101e5
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_3de7046e6 ...
dedupe_key signal_enriched:discovery_ipo_delta:e971aa1de6667f ...
throttle_s 0
created_at 2026-04-08T19:57:42.365437+00:00
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