originSignaturePayload method
Implementation
Uint8List originSignaturePayload() {
final Uint8List payloadForPreviousSignature =
this.previousSignaturePayload();
return concatUint8List([
payloadForPreviousSignature,
hexToUint8List(this.previousPublicKey!),
Uint8List.fromList([hexToUint8List(this.previousSignature!).length]),
hexToUint8List(this.previousSignature!),
]);
}