Delete row sig_abeb21db530c from signals

id sig_abeb21db530c
event_id evt_12717f6ecb41
watcher_id NULL
signal_type discovery_options_flow_snapshot
value {"as_of":"2026-04-21T07:45:48.956422+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source discovery_rss
reason_trace {}
dedupe_key discovery_options_flow_snapshot:5bfe5d2e6530daa7
throttle_s 0
created_at 2026-04-21T07:45:48.956422+00:00
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