var client = {
		username : "mars@mars.com",
		password : "mars@mars.com"
	};

	var auth = BIG.ec.build("Authinfo", client);

	var user = {
		surname : client.username,
		login : client.username
	};

	user = BIG.ec.build("User", user);

	client = BIG.ec.build("Client");

	user.set_authinfo(auth);

	client.set_user(user);

	client.persist(transaction);