'How to define a generic map in proto file for entries in map<string, Object> in java?

I'm trying to write a proto file having generic map so that when I fetch the data from database in json format, it can be converted to proto format? Is there anyway to do this ?

Here is the image of the entries present in the database for which, proto file needs to written.

For example: I need to write a generic map in proto file in such a way that all the entries in the "PROPERTY_CATEGORY" should be converted to proto.



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