UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'N3pdaYalkUlXfoCERlYRnsTZeNCSqXDp4/aYhKrZV7Q=' 
WHERE 
  key_id = '250cb82ebcd4a621a10a3c62e208230684dcdb900dfb377f635e7f121090d16b' 
  AND (
    token = 'N3pdaYalkUlXfoCERlYRnsTZeNCSqXDp4/aYhKrZV7Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )