test.js

{
	"attachment": {
		"type": "template",
		"payload": {
			"template_type": "generic",
			"elements": [{
				"title": "Cai na Folia BH",
				"subtitle": "Fique sabendo de tudo sobre o carnaval de BH.",
				"image_url": "https://s3-sa-east-1.amazonaws.com/msging.net/Services/Images/a2ee1097-5798-4222-a8a6-e0a43b52eb97",
				"buttons": [
                    {
                        "type":"web_url",
                        "url":"https://m.me/cainafoliabh/",
                        "title":"Quero um bloco"
                      },
                    {
					"type": "element_share"
                }
            ]
			}]
		}
	}
}