Message encoding
To prevent errors or ambiguity caused by special characters enclosed in a message, need to properly encode the message before message is transmitted.
Encoding scenarios  | Encoding method  | 
For the byte data, such as the signature and the encrypted content, encode the data with the  
  | Use the    | 
For the HTTPS URL data, perform URL encoding first before transmitting. For example: 
 
 
  | 
