Please try my new Plugin/Asset Pub-Sub Messenger that has been approved on Asset Store! 
PUB\SUB MESSENGER IS A LIGHTWEIGHT, OPEN SOURCE LIBRARY FOR UNITY.
THIS LIBRARY PROVIDES A PUB\SUB MECHANISM THAT IS A PART OF SOLID PRINCIPLES IN PROGRAMMING.
HELPING WITH SOLVING PROBLEMS
- Wiring the Parts with Events
- Unity and .NET Events
- Dependencies
THE SOLUTION
- Pub\Sub Pattern
- Payloads instead of wired delegates
- Better Encapsulation
- Weak Reference and less memory leaks
- SOLID Principles in Practice
Supported Platforms: Android, iOS, Windows, Mac, Linux, WebGL
Supported Unity Versions: 2017.x, 2018.x, 2019.x
Resources