UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '85t/7U5qyz+0kqarA0RLD4Kow0FBNcJw8w9jbpD282g=' 
WHERE 
  key_id = '6be1e91c2eef689f77a2aefa6db1127c58233f00fa53724774662bbe11c7a332' 
  AND (
    token = '85t/7U5qyz+0kqarA0RLD4Kow0FBNcJw8w9jbpD282g=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )