UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'xhY4g0mlb2aq+PW5G505Ninw/Tha5DT9UPg8HbHm4Ec=' 
WHERE 
  key_id = '2471b298689d64df977276ab01892ce312af0899985c3b4cf2cf7f7141b596f4' 
  AND (
    token = 'xhY4g0mlb2aq+PW5G505Ninw/Tha5DT9UPg8HbHm4Ec=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )