UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DTKGc7bveYroiw8mCbuvZoO6tfFw8ktwQ7XaG80vm/w=' 
WHERE 
  key_id = '4ca2e76cc6741447f2f9c23554d4d939827221297875eee554eebd7310229418' 
  AND (
    token = 'DTKGc7bveYroiw8mCbuvZoO6tfFw8ktwQ7XaG80vm/w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )