UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0Bnemhj3+zWXv3YZQqyx708mI6FkdM38e5DBee28luQ=' 
WHERE 
  key_id = 'ca9c8c8f20398873368e9d5911ca2397e1d0b18e615026c10e4d38e2539beb7d' 
  AND (
    token = '0Bnemhj3+zWXv3YZQqyx708mI6FkdM38e5DBee28luQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )