Delete row sig_9c68516f8059 from signals

id sig_9c68516f8059
event_id evt_1c8733104fc0
watcher_id NULL
signal_type market_headlines_snapshot
value {"as_of":"2026-04-12T06:09:29.426224+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_headlines_snapshot:71e96aacb18947a7
throttle_s 0
created_at 2026-04-12T06:09:29.426224+00:00
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