private async Task <string> SignTransactionAsync(IEthExternalSigner externalSigner, TransactionChainId transaction)
{
await transaction.SignExternallyAsync(externalSigner).ConfigureAwait(false);
return(transaction.GetRLPEncoded().ToHex());
}
private string SignTransaction(byte[] privateKey, TransactionChainId transaction)
{
transaction.Sign(new CfxECKey(privateKey, true));
return(transaction.GetRLPEncoded().ToHex());
}