curl --request GET \
  --url https://api.anchorage-staging.com/v2/subaccounts/transactions/allocations \
  --header 'Api-Access-Key: <api-key>'

{
  "data": [
    {
      "transactionId": "c4c4652f-0c07-472c-a7f8-955fbe07775d",
      "subaccounts": [
        {
          "subaccountId": "ec761b5e-fd2c-497a-a9a0-f8738ac97bdf",
          "balances": [
            {
              "assetType": "BTC",
              "hold": "1000.00",
              "pending": "1000.00",
              "posted": "1000.00"
            }
          ]
        }
      ],
      "status": "POSTED",
      "createdAt": "2019-01-02T12:34:56.000Z",
      "endedAt": "2019-01-03T12:34:56.000Z",
      "transactionType": "WITHDRAWAL"
    }
  ],
  "page": {
    "next": "<next page url>"
  }
}