Delete row sig_ff8f80ed29e0 from signals

id sig_ff8f80ed29e0
event_id evt_091445e8b3a8
watcher_id NULL
signal_type technical_indicator_signal
value {"bars":600,"confidence":0.6059913 ...
threshold NULL
direction NULL
severity medium
window NULL
source technical_analyzer
reason_trace {"cutoff_iso":"2026-04-06T00:15:28Z ...
dedupe_key ta:technical_indicator_signal:priceAboveEma12:ema_ ...
throttle_s 0
created_at 2026-04-09T00:15:28.519558+00:00
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