Delete row sig_191908719d2f from signals

id sig_191908719d2f
event_id evt_3e64ee9aca28
watcher_id NULL
signal_type opportunity_research_snapshot
value {"as_of":"2026-04-09T23:05:01.658513+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source opportunity_research_ingestor
reason_trace {}
dedupe_key opportunity_research_snapshot:ca9cf2442e5d02cc
throttle_s 0
created_at 2026-04-09T23:05:01.658513+00:00
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