curl --request GET \
  --url https://app.supercycle.com/api/v1/items/{itemId} \
  --header 'Authorization: Bearer <token>'

{
  "id": 123,
  "createdAt": "2023-11-07T05:31:56Z",
  "activeRentalId": 123,
  "productTitle": "<string>",
  "serial": "<string>",
  "sequentialId": 123,
  "shopifyVariantId": 123,
  "tags": [
    "<string>"
  ],
  "variantTitle": "<string>",
  "activeReturnId": 123,
  "condition": {
    "id": 123,
    "createdAt": "2023-11-07T05:31:56Z",
    "severityKey": "<string>",
    "severityTone": "<string>",
    "title": "<string>"
  },
  "conditionId": 123,
  "imageUrl": "<string>",
  "location": {
    "shopifyId": 123,
    "name": "<string>"
  },
  "pickLocation": "<string>",
  "shopifyProductId": 123,
  "timelineEvents": [
    {
      "id": 123,
      "eventableId": 123,
      "eventableType": "<string>",
      "eventType": "<string>",
      "metadata": {},
      "createdAt": "2023-11-07T05:31:56Z",
      "updatedAt": "2023-11-07T05:31:56Z",
      "author": "<string>"
    }
  ],
  "customFields": [
    {
      "id": 123,
      "ownerId": 123,
      "definitionId": 123,
      "key": "<string>",
      "value": "<string>",
      "valueJson": "<unknown>"
    }
  ]
}