signJWT method
Implementation
@override
Future<String> signJWT(String aud) async {
_checkInitialized();
final Uint8List seed = await _getClientSeed();
final RelayAuthKeyPair keyPair = await relayAuth.generateKeyPair(seed);
String sub = utils.generateRandomBytes32();
String jwt = await relayAuth.signJWT(
sub: sub,
aud: aud,
ttl: WalletConnectConstants.ONE_DAY,
keyPair: keyPair,
);
return jwt;
}