Delete row sig_6b8f6c9e4585 from signals

id sig_6b8f6c9e4585
event_id evt_fbf3b3307b22
watcher_id NULL
signal_type opportunity_case_memory
value {"case_id":"case_0d7af82e1ccd735f" ...
threshold NULL
direction NULL
severity low
window NULL
source opportunity_finder
reason_trace {"_evidence_event_ids":["evt_a707fa8c7 ...
dedupe_key opportunity_case_memory:case_0d7af82e1ccd735f:moni ...
throttle_s 3600
created_at 2026-04-03T12:03:52.368126+00:00
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