Fetch a Book Transfer

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

{
  "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
}