UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4QLeumtmZUVOnRSATZn9KHn5c52m3EYeJNLPUw3xFJM=' 
WHERE 
  key_id = '81ad2015ce86471ec4d372ef734db9fbe3586c701a58159b1de75aa23d8449a3' 
  AND (
    token = '4QLeumtmZUVOnRSATZn9KHn5c52m3EYeJNLPUw3xFJM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )