DebitWalletRequest

{
    "gameId": "game-slots-01",
    "gameSession": "sess_123",
    "accountId": 1001,
    "amount": 50,
    "referenceNumber": "debit_sess_123_round_12",
    "description": "Round stake",
    "metadata": {
        "round": 12,
        "betType": "STANDARD"
    },
    "nonce": "2993f3b0-84aa-4dc3-9599-4f277631f9e8",
    "timestamp": 1778063100000,
    "signature": "hmac-sha256:03ac..."
}