NodeJS Nan C++ bind nested object to addon instance

In a C++ NodeJS project I'm currently working on, I want to have an object which contains a nested object, like

console.log(object.myObject); // { [keys: string]: any }

Without binding objects to properties my addon is working very well. I create the Instance with

auto ctor = Nan::New<v8::FunctionTemplate>(New);
auto ctorInst = ctor->InstanceTemplate();

And bind the object to the class instance like

v8::Local<v8::Object> obj = Nan::New<v8::Object>();
ctorInst->Set(Nan::New("myObject").ToLocalChecked(), obj);

which prints the following when executing the JS code (create an instance of the C++ extension).

# Fatal error in , line 0

# Check failed: !value_obj->IsJSReceiver() || value_obj->IsTemplateInfo().

On the other hand binding primitives (number, string, etc.) works flawlessly.

ctorInst->Set(Nan::New("myObject").ToLocalChecked(), Nan::New<v8::Number>(42));

Do you have got any suggestions? Thanks and cheers!

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