Like any other eXo applications, Social fully complies the JCR standard to store data (identity, profile, activity, space and relationship). The Social JCR structure is organized to conform to the data storage for the individual purpose of Social. With this structure, it is easy for you to manage and access the data properly.
See the Social JCR structure in the chart below:
The root node of Social workspace is /production/ which consists of two child nodes named soc:providers, and soc:spaces.