Mensagem de Texto para Grupos

\<?php $curl = curl init(); curl setopt array($curl, array( curlopt url => 'https //{backend url}/api/messages/whatsmeow/sendtextgrouppro', 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" "120363176602447147\@g us", "openticket" 0, "queueid" "45", "body" "teste" }', curlopt httpheader => array( 'content type application/json', 'authorization bearer seutokenaqui' //token cadastrado na conexão ), )); $response = curl exec($curl); curl close($curl); echo $response;