UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Bq0c9hfPL81XVsBW3oKTJbPR5YuPmxXDx2j0fg2TiYo=' 
WHERE 
  key_id = '4d2d34800aa9b4b80f71ed694e8498186b26bb380b4b97322e4a3a2058f3d7d2' 
  AND (
    token = 'Bq0c9hfPL81XVsBW3oKTJbPR5YuPmxXDx2j0fg2TiYo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )