My jQuery is failing to work the json it received from the back

Question

Guys, I’m since yesterday trying to solve this kkk. Well I’m making an ajax request for my back-end. So far so good, the data arrives and execute right, do what I want. I return an array converted into Json. When I get into my jQuery, I can’t use it as an object. It always gives the same error "Uncaught Syntaxerror: Unexpected end of JSON input" or simply gets empty. Please help me...

This is the Ajax.

$('.inicia-chat').click(function(){
$('#destinatario').val('24');
$.ajax({
    url: 'php/carrega-chat.php',
    type: 'POST',
    data:{
      'destinatario' : 24
    }
  }).done(function(dados_array){
    var parse = JSON.parse(dados_array);
    console.log(parse);
  });
});

This is the PHP

$conn = new mysqli('localhost', 'root', '', 'kashikoi');
   if ($conn->connect_error) {
       $erro = '<script>alert('.$conn->connect_error.')</script>';
   }

$consulta_mensagem = "select * from mensagem where id_destinatario = ".$destinatario."";
$consulta_m = $conn->query($consulta_mensagem);

$rows = $consulta_m->num_rows;

$array = array();

if($rows <= 0){
    echo 1;
}else{
    while($linha = $consulta_m->fetch_array(MYSQLI_ASSOC)){
        $wow = array($linha['id_destinatario'], $linha['id_remetente'], $linha['mensagem']);
        array_push($array, $wow);
    }

    echo json_encode($array);
}