test.json

{
    "FAST": {
        "gasPrice": "46",
        "gasLimit": 500000,
        "trade": {
            "routes": [
                2
            ],
            "fromAmount": "1000000000000000000",
            "toAmount": "518950296471435895073",
            "rate": "518.950296471435895073"
        }
    },
    "STD": {
        "gasPrice": "28",
        "gasLimit": 500000,
        "trade": {
            "routes": [
                2
            ],
            "fromAmount": "1000000000000000000",
            "toAmount": "518950296471435895073",
            "rate": "518.950296471435895073"
        }
    },
    "SLOW": {
        "gasPrice": "27",
        "gasLimit": 500000,
        "trade": {
            "routes": [
                2
            ],
            "fromAmount": "1000000000000000000",
            "toAmount": "518950296471435895073",
            "rate": "518.950296471435895073"
        }
    }
}