How to perform 'Async Sign Message' in VisualBasic.
' Task: Async Sign Message
' Language: VisualBasic
Sub async_sign_message()
' Implementation for Async Sign Message
Dim result = ...; ' Initialize variable
' TODO: Implement core logic here
' Step 1: Prepare data
' Step 2: Process Async Sign Message
Console.WriteLine("Done");
End Sub