Laravel, when using Eloquent to retrieve data paginate and get methods are returning diferent output

I am having a hard time with Laravel. I have a query that returns all the table columns. The problem is that a field "foto" returns as an empty string in the JSON when I use the "get" or "find" methods. Paginate it works as expected.

this query:

$resultado = $query
           ->where('id_admin', '=', $id_admin)
           ->with('telasPermissao.itemPermissao')
           ->paginate(50);

foto comes as "foto": "data/image:93483940349"

Now, with this:

$resultado = $query
           ->where('id_admin', '=', $id_admin)
           ->with('telasPermissao.itemPermissao')
           ->find(1);



$resultado = $query
           ->where('id_admin', '=', $id_admin)
           ->with('telasPermissao.itemPermissao')
           ->get(50);

foto comes as "foto" : ""

I am returning the data from the controller like this:

return response()->json($resultado, 200);

In my operador model I have the following mutator:

public function getFotoAttribute($value)
{
    if ($value != null)
    {
        return pg_escape_string(fgets($value));
    }

        return null;
}

via Chebli Mohamed