UPDATE 
  tmall_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Tf9DjmoMuE9xKDw5TKQ1W4/VYqIa6z2pTAXLCOeAigI=' 
WHERE 
  key_id = '83fdf90b91d28d6190d47e6352e352051c4d0d21133250458ccf02a76489697e' 
  AND (
    token = 'Tf9DjmoMuE9xKDw5TKQ1W4/VYqIa6z2pTAXLCOeAigI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )