Adjust Cost API not working

test.js

const fetch = require("node-fetch");

let clickId = 111450850;
winston.info("Trying to send cost data to adjust for click_id: " + clickId);
let data = {
    cost_type: "cpi",
    cost_currency: "usd",
    cost_amount: "1.72",
    cost_id: "jetfuel_" + clickId,
    tag: "jetfuel"
};

let urlParameters = Object.entries(data).map(e => e.join('=')).join('&');
let args = {
    method: 'POST',
    body: urlParameters,
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
};
const response = await fetch("https://app.adjust.com/cost", args);

if (response.status !== 200) {
    winston.error("Got a FAILED response (" + JSON.stringify(response) + "from adjust when we tried to send cost for click_id: " + clickId);
} else {
    winston.info("Got a SUCCESS response from adjust when we tried to send cost for click_id: " + clickId);
}