How to perform 'Async Verify Signature' in Racket.
; Task: Async Verify Signature
; Language: Racket
define async_verify_signature() (
; Implementation for Async Verify Signature
define result = ...; ; Initialize variable
; TODO: Implement core logic here
; Step 1: Prepare data
; Step 2: Process Async Verify Signature
displayln("Done");
)