UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iu/Tdkg0HdNkHKltSP+2ZJoOU8ObftjVEEFFKTccRTc=' 
WHERE 
  key_id = '81100bfd17cb1effe1d3eb98a52afe65411ccb6d26dcd2d4402e07253e9f66d9' 
  AND (
    token = 'iu/Tdkg0HdNkHKltSP+2ZJoOU8ObftjVEEFFKTccRTc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )