Delete row sig_47fa9c328aa7 from signals

id sig_47fa9c328aa7
event_id evt_72470446d9c0
watcher_id NULL
signal_type market_headlines_snapshot
value {"as_of":"2026-04-12T13:35:47.661861+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_headlines_snapshot:92bc2179d7bd0121
throttle_s 0
created_at 2026-04-12T13:35:47.661861+00:00
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