Encode AvN Public Key For Signing

avnSdk.awtUtils.encodeAvnPublicKeyForSigning(avnPublicKey, issuedAt, hasPayer, payerAddress)

• hasPayer: There is a designated account that has registered this user as a user it wants to pay transaction fees for.
• payerAddress: The address of the aforementioned designated account.
• avnPublicKey: The AvN public key of the account requiring an AWT.
• issuedAt: The unix timestamp the token should be issued.