[
    {
        "index": 1,
        "timestamp": "2023-09-11 12:28:45.715940",
        "sender": "Bank",
        "recipient": "a",
        "amount": "1000",
        "balance": "1000"
    },
    {
        "index": 2,
        "timestamp": "2023-09-11 12:29:16.585995",
        "sender": "a",
        "recipient": "b",
        "amount": "1000",
        "balance": "0"
    },
    {
        "index": 3,
        "timestamp": "2023-09-11 12:39:10.514201",
        "sender": "b",
        "recipient": "a",
        "amount": "100",
        "balance": "100"
    },
    {
        "index": 4,
        "timestamp": "2023-09-11 12:49:07.362865",
        "sender": "b",
        "recipient": "a",
        "amount": "75",
        "balance": "175"
    }
]