Replica Service Help

Hi guys im using ReplicaService + Profile Service in order to achieve replication properly, but I am also storing server-sided values to profile service using replica. I am running into a ugly issue, where I want to set a table index inside of a table inside of other, and be able to change it, in normal Lua I would be able to do it but in replica I think im limited

local pData = {
cash = 1
 Vehicles = {
   {Name = "Ford Explorer"} -- What I want to do, is to add a Changes index to this table, and also to add values to that changes table, how do I do this?