{
  "version": 1,
  "address_groups": [
    {
      "name": "サンプルGroupA",
      "addresses": [
        {
          "address": "sharedmail1@example.com"
        },
        {
          "address": "user1@example.com"
        },
        {
          "address": "user2@example.com"
        }
      ]
    },
    {
      "name": "サンプルGroupB",
      "addresses": null
    }
  ],
  "address_groups_sync": []
}