public static function buildFromJSON($json)
{
$jsonObject = json_decode($json);
$signature = SignatureObject::createFromJSON(json_encode($jsonObject->signature));
$featureArray = array();
foreach ($jsonObject->featureList as $feature) {
$featureArray[] = FeatureObjectBuilder::buildFromJSON(json_encode($feature));
}
$builder = (new FeatureListObjectBuilder())->objectID($jsonObject->objectID)->featureList($featureArray)->datetime($jsonObject->datetime)->expires($jsonObject->expires)->signature($signature);
return $builder->build();
}