Get market depth

{
    "ask": {
        "symbol": "BTC/USDT",
        "minAmount": 0.0002805,
        "highestPrice": 59500.1,
        "lowestPrice": 59516.1,
        "maxAmount": 5.643762,
        "items": [
            {
                "price": 59500.1,
                "amount": 1.1864385
            },
            {
                "price": 59500.2,
                "amount": 0.0002805
            },
            {
                "price": 59500.8,
                "amount": 0.0002805
            },
            {
                "price": 59501.4,
                "amount": 0.0002805
            },
            {
                "price": 59501.5,
                "amount": 0.006103
            },
            {
                "price": 59501.7,
                "amount": 0.0428485
            },
            {
                "price": 59502,
                "amount": 0.0192185
            },
            {
                "price": 59502.1,
                "amount": 0.1142825
            },
            {
                "price": 59502.5,
                "amount": 0.000527
            },
            {
                "price": 59502.6,
                "amount": 0.0002805
            },
            {
                "price": 59503,
                "amount": 0.0311355
            },
            {
                "price": 59503.2,
                "amount": 0.0002805
            },
            {
                "price": 59503.5,
                "amount": 0.000527
            },
            {
                "price": 59503.8,
                "amount": 0.0002805
            },
            {
                "price": 59504,
                "amount": 0.0005355
            },
            {
                "price": 59504.4,
                "amount": 0.028849
            },
            {
                "price": 59504.5,
                "amount": 0.000527
            },
            {
                "price": 59505,
                "amount": 0.000816
            },
            {
                "price": 59505.5,
                "amount": 0.000527
            },
            {
                "price": 59505.6,
                "amount": 0.0002805
            },
            {
                "price": 59506,
                "amount": 0.0005355
            },
            {
                "price": 59506.2,
                "amount": 0.0002805
            },
            {
                "price": 59506.8,
                "amount": 0.0002805
            },
            {
                "price": 59507.4,
                "amount": 0.0002805
            }
        ],
        "direction": "SELL"
    },
    "bid": {
        "symbol": "BTC/USDT",
        "minAmount": 0.000046,
        "highestPrice": 59498,
        "lowestPrice": 59483.6,
        "maxAmount": 12.3216175,
        "items": [
            {
                "price": 59498,
                "amount": 0.095473
            },
            {
                "price": 59497.6,
                "amount": 0.0386515
            },
            {
                "price": 59497,
                "amount": 0.0003795
            },
            {
                "price": 59496.4,
                "amount": 0.0003795
            },
            {
                "price": 59495.8,
                "amount": 0.0003795
            },
            {
                "price": 59495.5,
                "amount": 0.035029
            },
            {
                "price": 59495.2,
                "amount": 0.0003795
            },
            {
                "price": 59494.6,
                "amount": 0.0003795
            },
            {
                "price": 59494,
                "amount": 0.0003795
            },
            {
                "price": 59493.5,
                "amount": 0.0003565
            },
            {
                "price": 59493.4,
                "amount": 0.0003795
            },
            {
                "price": 59493,
                "amount": 0.0007245
            },
            {
                "price": 59492.8,
                "amount": 0.0003795
            },
            {
                "price": 59492.5,
                "amount": 0.000713
            },
            {
                "price": 59492.2,
                "amount": 0.0003795
            },
            {
                "price": 59492.1,
                "amount": 0.19067
            },
            {
                "price": 59492,
                "amount": 0.3499795
            },
            {
                "price": 59491.6,
                "amount": 0.0003795
            },
            {
                "price": 59491.5,
                "amount": 0.0114195
            },
            {
                "price": 59491,
                "amount": 0.001104
            },
            {
                "price": 59490.5,
                "amount": 0.0110285
            },
            {
                "price": 59490.4,
                "amount": 0.0003795
            },
            {
                "price": 59490,
                "amount": 0.0007245
            },
            {
                "price": 59489.8,
                "amount": 0.0003795
            }
        ],
        "direction": "BUY"
    }
}