save after effects specific data buffer/clipboard to use it later

Hi guys, I am wondering is it possible somehow to save an application specific data (after effects) from buffer to some json, or binary file to restore it later and use again. For example coping the lyaer, storing the data about the layer, and later restoring the data to clipboard and pasting the layer again to timeline? 
It is pretty easy with texts using some node js libraries, but what about complex objects, like ae layers?