CreditWalletRequest

{
    "gameId": "game-slots-01",
    "gameSession": "sess_123",
    "accountId": 1001,
    "amount": 95,
    "debitTransactionId": 80101,
    "referenceNumber": "credit_sess_123_round_12",
    "description": "Round payout",
    "metadata": {
        "round": 12,
        "result": "WIN"
    },
    "nonce": "52663c0d-6f42-4baf-8a45-3951d2ff89f5",
    "timestamp": 1778063220000,
    "signature": "hmac-sha256:85df..."
}