Delete row sig_667ab70d0881 from signals

id sig_667ab70d0881
event_id evt_0020afbd7085
watcher_id NULL
signal_type market_headlines_snapshot
value {"as_of":"2026-04-08T04:40:09.460185+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_headlines_snapshot:7493edb9c75c9024
throttle_s 0
created_at 2026-04-08T04:40:09.460185+00:00
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