curl --request POST \
  --url https://dashboard.hologram.io/api/1/devices/changeplan \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "planid": 4,
  "zone": "global",
  "deviceids": [
    1
  ],
  "orgid": 45,
  "overage_limit": 5000000,
  "useacctbalance": true
}
'

{
  "success": true,
  "data": {
    "warnings": [],
    "devices_modified": [
      5
    ],
    "profiles_modified": [
      8,
      9
    ],
    "newplanid": 1
  },
  "order_data": {
    "preview": false,
    "sku": "PLANCHANGE",
    "unit_cost": 0.99,
    "total_cost": 0.99,
    "quantity": 1,
    "description": "Plan change for 2 profiles",
    "transaction_type_id": "PCH",
    "extra_description": "Plan:Standard Plan($1.9900 per 1 months)",
    "needs_shipping": false,
    "linkids": [
      9,
      8
    ]
  }
}