After I export my image sequences with bodymovin json files are too big. :(

Hello, first of all I want to say sorry for my english because I am not a native speaker. So let’s start. I am working to my portofolio website and i made a 3D animation in Blender and I exported the files in png sequences and after this part I compressed all images with it is about 140 frames. After I compressed the files the folder has 9.46mb. But when I export all those files in After Effects and i make a json file the json file has 32mb. Why is that ? Is there any solution for that ?