In some implementations, a processing system of a database system may identify identification information associated with a user within a request, received from a client device, for data associated with the user, compare the identification information with user identity entries persisting on the memory device, determine, from the comparison, that a user identity entry persisting on the memory device is associated with the user, and query a backend database associated with the client device with one or more parameters included within the user identity entry to obtain the data associated with the user.