TransferWalletBalanceRequest

{
    "senderAccountId": 1001,
    "receiverAccountId": 2002,
    "amount": 50,
    "referenceNumber": "transfer_20260506_0001",
    "nonce": "b3d9a8f2-7fb2-4f45-a22a-2c52b602ef74",
    "timestamp": 1778062500000,
    "signature": "5a7f3e2b9c4a1d8e6f0b2a5c7d9e1f3a4b6c8d0e2f4a6b8c0d2e4f6a8b0c2d4"
}