[
  {
    "name": "Ahsan",
    "mac_address": "f8-98-b9-7f-fe-0d",
    "picture": "static/img/ahsan.jpg"
  },
  {
    "name": "John Smith Updated",
    "mac_address": "aa-bb-cc-dd-ee-ff",
    "picture": "static/img/john_doe.jpg"
  }
]