Delete row sig_cd2f02a59582 from signals

id sig_cd2f02a59582
event_id evt_38491f8a666b
watcher_id NULL
signal_type opportunity_research_snapshot
value {"as_of":"2026-04-20T07:25:53.294226+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source opportunity_research_ingestor
reason_trace {}
dedupe_key opportunity_research_snapshot:799a5d69389552d0
throttle_s 0
created_at 2026-04-20T07:25:53.294226+00:00
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