Mensagem para Grupos

<?php
 
$curl = curl_init();
 
curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://{BACKEND_URL}/api/messages/sendGroup',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS =>'{
    "number": "34324434543543212", //ID DO GRUPO
    "openTicket": "0", //0 N&atilde;o abre ticket e 1 Abre Ticket
    "queueId": "0", // Informe o ID da fila desejada (Se abrir ticket)
    "body": "Teste"
  }',
  CURLOPT_HTTPHEADER => array(
    'Content-Type: application/json',
    'Authorization: Bearer seutokenaqui' //Token cadastrado na conex&atilde;o
  ),
));
 
$response = curl_exec($curl);
 
curl_close($curl);
echo $response;