Delete row sig_a18c867430bf from signals

id sig_a18c867430bf
event_id evt_b1f91155881c
watcher_id NULL
signal_type opportunity_research_snapshot
value {"as_of":"2026-04-12T06:21:16.639585+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source opportunity_research_ingestor
reason_trace {}
dedupe_key opportunity_research_snapshot:67944494c61f68cc
throttle_s 0
created_at 2026-04-12T06:21:16.639585+00:00
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