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Подробнее о программе Token можно узнать в официальной документации ( Solana documentation.) Баланс можно переводить между аккаунтами с помощью инструкции Transfer. Владелец исходного аккаунта должен присутствовать как подписант в инструкции Transfer, если исходный и целевой аккаунты различаются. 
public class TransferTokenExample : IExample
{
    private static readonly IRpcClient rpcClient = ClientFactory.GetClient(Cluster.TestNet);

    private const string MnemonicWords =
        "route clerk disease box emerge airport loud waste attitude film army tray " +
        "forward deal onion eight catalog surface unit card window walnut wealth medal";

    public void Run()
    {
        Wallet.Wallet wallet = new Wallet.Wallet(MnemonicWords);

        RequestResult<ResponseValue<BlockHash>> blockHash = rpcClient.GetRecentBlockHash();
        ulong minBalanceForExemptionAcc = rpcClient.GetMinimumBalanceForRentExemption(TokenProgram.TokenAccountDataSize).Result;
        Console.WriteLine($"MinBalanceForRentExemption Account >> {minBalanceForExemptionAcc}");

        Account mintAccount = wallet.GetAccount(31);
        Console.WriteLine($"MintAccount: {mintAccount}");
        Account ownerAccount = wallet.GetAccount(10);
        Console.WriteLine($"OwnerAccount: {ownerAccount}");
        Account initialAccount = wallet.GetAccount(32);
        Console.WriteLine($"InitialAccount: {initialAccount}");
        Account newAccount = wallet.GetAccount(33);
        Console.WriteLine($"NewAccount: {newAccount}");

        byte[] tx = new TransactionBuilder().SetRecentBlockHash(blockHash.Result.Value.Blockhash)
            .SetFeePayer(ownerAccount)
            .AddInstruction(SystemProgram.CreateAccount(
                ownerAccount.PublicKey,
                newAccount.PublicKey,
                minBalanceForExemptionAcc,
                TokenProgram.TokenAccountDataSize,
                TokenProgram.ProgramIdKey))
            .AddInstruction(TokenProgram.InitializeAccount(
                newAccount.PublicKey,
                mintAccount.PublicKey,
                ownerAccount.PublicKey))
            .AddInstruction(TokenProgram.Transfer(
                initialAccount.PublicKey,
                newAccount.PublicKey,
                25000,
                ownerAccount))
            .AddInstruction(MemoProgram.NewMemo(initialAccount, "Hello from Sol.Net"))
            .Build(new List<Account> { ownerAccount, newAccount, initialAccount });

        Console.WriteLine($"Tx: {Convert.ToBase64String(tx)}");

        RequestResult<ResponseValue<SimulationLogs>> txSim = rpcClient.SimulateTransaction(tx);
        string logs = Examples.PrettyPrintTransactionSimulationLogs(txSim.Result.Value.Logs);
        Console.WriteLine($"Transaction Simulation:\n\tError: {txSim.Result.Value.Error}\n\tLogs: \n" + logs);

        RequestResult<string> txReq = rpcClient.SendTransaction(tx);
        Console.WriteLine($"Tx Signature: {txReq.Result}");
    }
}