To grant access by user groups, add the group id to the groups.r or groups.w property. By using groups, an app can manage access for a set of users even as users join or leave the group over time. A group with its all property set to true will allow access to all users of the app.
These grants are stored server side by using specific properties nested under _acl in the JSON representation. To ensure correct execution, the exact property names must be passed.
# Regular entity with a detailed ACL structure included