Delete row sig_2c837895a395 from signals

id sig_2c837895a395
event_id evt_545a1852fe9e
watcher_id NULL
signal_type market_prices_snapshot
value {"as_of":"2026-04-16T11:14:10.753070+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_prices_snapshot:f38f5bdffa056fab
throttle_s 0
created_at 2026-04-16T11:14:10.753070+00:00
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