It looked like watch could be used for this but I don't know how this is feasible if I have 100k people and 1000 objects where about 50% of the people have access to each item. The expectation is then to have 50,000,000 actual records in a secondary index of some sort? Realistically, the numbers I am working with are more like thousands of users and 10k-100k objects in certain cases at the moment. Really looking for how to do this effectively for now and in the future though. Still the point is similar though.