Could not fetch row with primary-key sig_f808f549a5b2.

Delete row sig_3f95a73e99a1 from signals

id sig_3f95a73e99a1
event_id evt_a5b426f2b0c2
watcher_id NULL
signal_type discovery_unusual_volume_delta
value {"aggregator_url":"https://www.nasdaq. ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_ingestor
reason_trace {"_evidence_event_ids":["evt_9bcd9b614 ...
dedupe_key signal_enriched:discovery_unusual_volume_delta:f1d ...
throttle_s 0
created_at 2026-04-17T23:00:32.547123+00:00
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