How to get Message ID from Lotus RPC?

Hello! Can you help me with understanding message ID? RPC returns CID: ‘/’ => ‘bafy2bzacec36zmfwwm5gmsh2kqc5wod7opwkcbn3pwi5exu22ioovujmjpmq4’ while explorer shows different message ID on that: https://filscan.io/#/message/detail?cid=bafy2bzacec36zmfwwm5gmsh2kqc5wod7opwkcbn3pwi5exu22ioovujmjpmq4 gives bafy2bzacebfcbijp7tw7yg7xbgjvshar7h5wwli5rw2txyjvalowzqre6jmk2.

How to get MessageID using RPC?