Delete row sig_1589c6a1017f from signals

id sig_1589c6a1017f
event_id evt_dbcb3040d0dc
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_13530c8c3 ...
dedupe_key signal_enriched:discovery_ipo_delta:09fe0316b34035 ...
throttle_s 0
created_at 2026-04-17T03:42:58.209772+00:00
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