Real Sociedad Fan Token (RSO) enables supporters to exert influence over their preferred teams, leagues, or clubs across various sports. Via the Socios.com platform, token holders can take part in specific club choices, such as selecting a goal celebration anthem for football matches or deciding on MMA fighter matchups. Additionally, owning these tokens grants access to exclusive opportunities, including meeting players and attending training sessions.

Socios.com hosts Fan Tokens for many major global sporting entities. Among the partners launching on the platform are FC Barcelona, Inter Milan, AC Milan, Manchester City, UFC, ROUSH Fenway Racing, and Aston Martin.