Delete row sig_e3f150166fac from signals

id sig_e3f150166fac
event_id evt_339f378e3cfc
watcher_id NULL
signal_type opportunity_research_snapshot
value {"as_of":"2026-04-20T11:03:28.472631+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source opportunity_research_ingestor
reason_trace {}
dedupe_key opportunity_research_snapshot:a49c09028b06f217
throttle_s 0
created_at 2026-04-20T11:03:28.472631+00:00
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