Delete row sig_4a93a7adf3c8 from signals

id sig_4a93a7adf3c8
event_id evt_2da3880927e4
watcher_id NULL
signal_type discovery_unusual_volume_snapshot
value {"as_of":"2026-04-08T10:33:26.207932+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_rss
reason_trace {}
dedupe_key discovery_unusual_volume_snapshot:1084a3c8eceda2d6
throttle_s 0
created_at 2026-04-08T10:33:26.207932+00:00
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