UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Rv0A0AT0eTSo6a6Qnvj0Z8SacTtQPJcUBSC8vqWTF9o=' 
WHERE 
  key_id = 'a6983f847e4eab43625e8e775066f6c765a3bd05d07cdc8d85d7f44bac40d48a' 
  AND (
    token = 'Rv0A0AT0eTSo6a6Qnvj0Z8SacTtQPJcUBSC8vqWTF9o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )