curl --request PUT \
  --url https://int-data.moneydesktop.com/beats/{beat_guid} \
  --header 'Content-Type: application/vnd.mx.nexus.v1+json' \
  --header 'MD-SESSION-TOKEN: <api-key>' \
  --data '
{
  "beat": {
    "has_been_displayed": true,
    "is_dismissed": false
  }
}
'

import requests

url = "https://int-data.moneydesktop.com/beats/{beat_guid}"

payload = { "beat": {
        "has_been_displayed": True,
        "is_dismissed": False
    } }
headers = {
    "MD-SESSION-TOKEN": "<api-key>",
    "Content-Type": "application/vnd.mx.nexus.v1+json"
}

response = requests.put(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PUT',
  headers: {
    'MD-SESSION-TOKEN': '<api-key>',
    'Content-Type': 'application/vnd.mx.nexus.v1+json'
  },
  body: JSON.stringify({beat: {has_been_displayed: true, is_dismissed: false}})
};

fetch('https://int-data.moneydesktop.com/beats/{beat_guid}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://int-data.moneydesktop.com/beats/{beat_guid}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'beat' => [
        'has_been_displayed' => true,
        'is_dismissed' => false
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/vnd.mx.nexus.v1+json",
    "MD-SESSION-TOKEN: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://int-data.moneydesktop.com/beats/{beat_guid}"

	payload := strings.NewReader("{\n  \"beat\": {\n    \"has_been_displayed\": true,\n    \"is_dismissed\": false\n  }\n}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("MD-SESSION-TOKEN", "<api-key>")
	req.Header.Add("Content-Type", "application/vnd.mx.nexus.v1+json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://int-data.moneydesktop.com/beats/{beat_guid}")
  .header("MD-SESSION-TOKEN", "<api-key>")
  .header("Content-Type", "application/vnd.mx.nexus.v1+json")
  .body("{\n  \"beat\": {\n    \"has_been_displayed\": true,\n    \"is_dismissed\": false\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://int-data.moneydesktop.com/beats/{beat_guid}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Put.new(url)
request["MD-SESSION-TOKEN"] = '<api-key>'
request["Content-Type"] = 'application/vnd.mx.nexus.v1+json'
request.body = "{\n  \"beat\": {\n    \"has_been_displayed\": true,\n    \"is_dismissed\": false\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "beat": {
    "account_guids": [
      "ACT-2746bc4c-ee78-5631-5a33-062dea4b0437"
    ],
    "created_at": "2020-03-31T18:41:32.000Z",
    "description": "It looks like your most recent bill from Comcast was lower than it normally is. You paid $31.26, which is 28% lower than your recent average payment of $43.43.",
    "digest": "87+y8ZLvW/TIr5tbknUtGg==",
    "displayed_at": "2020-03-03T17:55:40.000Z",
    "guid": "BET-725b097e-ab18-43ca-a7fe-3c98c5a1db08",
    "has_been_displayed": false,
    "is_dismissed": false,
    "is_relevant": false,
    "primary_account_guid": "ACT-2746bc4c-ee78-5631-5a33-062dea4b0437",
    "primary_transaction_guid": "TRN-3e5919b3-c9c9-4346-b187-2ff235d371ec",
    "template": "BillAmountNotStandard",
    "title": "Bill lower than usual",
    "transaction_guids": [
      "TRN-3e5919b3-c9c9-4346-b187-2ff235d371ec"
    ],
    "updated_at": "2020-03-31T18:41:32.000Z",
    "user_guid": "USR-29dfffe5-296e-4784-89fd-6e81c8e682e6"
  }
}