I attach an image of what I mean.
i attach other image to be more explicit
I have trying some things but i really dont understand at all the documentation.
For example: a new user register to my game, i used playfabserverApi to store name, last name, user name and password in a json object in title data, BTW i used authentication Api to register and login the user, but when a new user register, in my title data User, it updated the data that i have it and i lost the information for my last user.