Delete row sig_0ce132e051db from signals

id sig_0ce132e051db
event_id evt_1b52e197790f
watcher_id NULL
signal_type discovery_options_flow_delta
value {"aggregator_url":"https://www.nasdaq. ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_ingestor
reason_trace {"_evidence_event_ids":["evt_991f93af1 ...
dedupe_key signal_enriched:discovery_options_flow_delta:448f6 ...
throttle_s 0
created_at 2026-04-11T00:11:50.548611+00:00
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