Links the social network, which is used by the player for authentication, to the user account.
The linking flow:
- The user authenticates on the game website.
- The UI offers to link the social network to the user account.
- The Xsolla Login server redirects the user to the social network.
- The user authenticates in the social network.
- The Xsolla Login server links the social network to the user account.
- The Xsolla Login server redirects the user to the game website.
Example of a method with client-side authentication: 
Claims that are contained in the token after authentication via a social network. Presence of these claims does not depend on the user database.
provideridis_cross_authsocial_access_tokenaccess_tokenparameter used for authentication. Contact your Account Manager to set up the feature.picturebirthdaygendername