OKX Flash Deals will launch Sei (SEI) Event time: November 27, 2025, 7:00 PM to December 2, 2025, 7:00 PM (UTC+8) Stake BTC, OKB, USDT, or ETH to share 7,319,915 SEI airdrop rewards! How to participate : Top left corner of the app — Earn & Rewards — Flash Deals