List Book Transfers

curl --request GET \
  --url https://api.treasuryprime.com/book \
  --header 'Authorization: Basic <encoded-value>'

{
  "data": [
    {
      "amount": "100.00",
      "created_at": "2017-11-02T11:55:14Z",
      "description": null,
      "from_account_id": "acct_1234567890",
      "id": "book_1029384756",
      "status": "pending",
      "to_account_id": "acct_0987654321",
      "updated_at": "2017-11-02T11:55:14Z",
      "userdata": null
    }
  ]
}