UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Pkbu6trokr0t0rCsqxeZnnSLleAdT5P/vaqByvKXU9o=' 
WHERE 
  key_id = '181a35f8173bafd7de2688089bb4a4426237df77171d3ac8d61991115541d898' 
  AND (
    token = 'Pkbu6trokr0t0rCsqxeZnnSLleAdT5P/vaqByvKXU9o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )