import requests

url = "https://{FUSION HOST}/api/license"

payload = ["aSDinaTvuI8gbWludGxpZnk="]
headers = {"Content-Type": "application/octet-stream"}

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

print(response.text)

HttpResponse<String> response = Unirest.put("https://{FUSION HOST}/api/license")
  .header("Content-Type", "application/octet-stream")
  .body("[\n  \"aSDinaTvuI8gbWludGxpZnk=\"\n]")
  .asString();

const options = {
  method: 'PUT',
  headers: {'Content-Type': 'application/octet-stream'},
  body: JSON.stringify(['aSDinaTvuI8gbWludGxpZnk='])
};

fetch('https://{FUSION HOST}/api/license', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

require 'uri'
require 'net/http'

url = URI("https://{FUSION HOST}/api/license")

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

request = Net::HTTP::Put.new(url)
request["Content-Type"] = 'application/octet-stream'
request.body = "[\n  \"aSDinaTvuI8gbWludGxpZnk=\"\n]"

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

package main

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

func main() {

	url := "https://{FUSION HOST}/api/license"

	payload := strings.NewReader("[\n  \"aSDinaTvuI8gbWludGxpZnk=\"\n]")

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

	req.Header.Add("Content-Type", "application/octet-stream")

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

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

	fmt.Println(string(body))

}

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{FUSION HOST}/api/license",
  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([
    'aSDinaTvuI8gbWludGxpZnk='
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/octet-stream"
  ],
]);

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

curl_close($curl);

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

curl --request PUT \
  --url https://{FUSION HOST}/api/license \
  --header 'Content-Type: application/octet-stream' \
  --data '
[
  "aSDinaTvuI8gbWludGxpZnk="
]
'

This response has no body data.