UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'D6UWFA3HG1XbqPLEKTRVvk7KM5NqIUBAxPzS7IZTX98=' 
WHERE 
  key_id = '8434279a6945b08ec6bcbc4d1df04db1547a24f4a3a1d5d895beeeb7ff364efd' 
  AND (
    token = 'D6UWFA3HG1XbqPLEKTRVvk7KM5NqIUBAxPzS7IZTX98=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )