GameTransaction

{
    "id": "01JMHKA2E5F7G9H0J1K2L3M4N5",
    "amount": "50",
    "balance_after": "550",
    "source": "game_grant",
    "note": "Daily login reward",
    "created_at": "2024-01-15T10:30:00.000000000Z"
}