"method":"send_template",
"id":"test_1523960374_wERGZIon",
"page_id":"176029956384795",
"template_name":"Shipping Status Update Push"
"username":"custom user id"
"package_number":"zvfVUREPVPUQ1oMl",
"package_status_description":"Status: enroute by UPS Exp. Delivery: 03, Jan, 2018",
"image_url":"https://unsplash.it/120/120/?random",
"detailed_tracking_url":"http://shop.meetbot.ai",
"package_status":"shipped"