I think a good start would be to separate via tags and then add subscribers to the Data Object fact sheets, maybe make a relation with organization fact sheets too.
Other than that maybe integrations with your data related tools etl, analytics etc. may be useful. 
At least without thinking too much these could be the “extra” actions that could come in handy for this.

Thanks for providing the inputs, one of the concerns while implementing Data mesh thinking in LeanIX is to be handling sub-domains impacting cross domains. Means how to handle scenarios where sub-domains shared by multiple domains?

Thanks for providing the inputs, one of the concerns while implementing Data mesh thinking in LeanIX is to be handling sub-domains impacting cross domains. Means how to handle scenarios where sub-domains shared by multiple domains?