What is an MOE transaction?

Excuse me, could you please clarify what an MOE transaction stands for? I'm not entirely familiar with the term and I'm curious to know more about it. Is it related to a specific type of cryptocurrency transaction? Or perhaps it's a method of exchange used in the finance industry? I'd appreciate it if you could provide a brief explanation of what an MOE transaction entails and how it works. Thank you in advance for your help.