I have noticed that the same error occurs with your plugin as with the photon plugin.
I do not understand how it works.
I can do encode and generate the string with the data but I can not do decode, so how do I convert the generated string into data for my game ?.
I do not see any action in the plugin that says "decode ...".
Ok, now I think I understand
Then I must save my game data on disk
Then I create a hash of that data and save that hash string also on disk
Later, when I reload the game data and the hash string
I generate a new chain with the game data loaded and I make a comparison with the chain I had saved on disk
If the chains do not match, then that will indicate that the game data has been altered, this should mean that the player has altered the data.