UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CmVRN4xazaPC2co+i5DPUuFQY/9i036nFVDumA2YhOU=' 
WHERE 
  key_id = '1542ea34235b8e9170ce90c30a70e0216ce1072f8bb7059560b0f9cfbdb73a87' 
  AND (
    token = 'CmVRN4xazaPC2co+i5DPUuFQY/9i036nFVDumA2YhOU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )