Delete row sig_a59a280d7249 from signals

id sig_a59a280d7249
event_id evt_d7466606ff2c
watcher_id NULL
signal_type market_prices_snapshot
value {"as_of":"2026-04-12T12:19:55.116687+0 ...
threshold NULL
direction NULL
severity NULL
window NULL
source market_ingestor
reason_trace {}
dedupe_key market_prices_snapshot:70998dff4a6d0b6d
throttle_s 0
created_at 2026-04-12T12:19:55.116687+00:00
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