Delete row sig_92e56c86be0f from signals

id sig_92e56c86be0f
event_id evt_e121db075982
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_a155f7bd4 ...
dedupe_key signal_enriched:discovery_ipo_delta:83f76ec97bc4a9 ...
throttle_s 0
created_at 2026-04-17T21:52:12.771882+00:00
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