The OKB token of the second largest offshore exchange OKX fell sharply in 15 minutes from 8:00 to 8:15 UTC+8, from $40 to a low of $30, and then quickly returned to normal levels. OKB once dropped from $48 to $25.1 on January 23 due to someone's selling. https://www.okx.com/trade-spot/okb-usdt