Retrieve an account

curl --request GET \
  --url https://sandbox-api.billingrails.com/v1/accounts/{id} \
  --header 'Authorization: Bearer <token>'

{
  "account": {
    "object": "account",
    "id": "acc_IhMUl3rrZ3",
    "created_at": "2025-02-14T17:33:40.843Z",
    "external_id": "test_account",
    "type": "individual",
    "name": "John Doe",
    "email": "john@test.xyz",
    "default_currency": "NGN",
    "country": "NG",
    "invoice_settings": {
      "number_prefix": "INV",
      "grace_period_days": 0,
      "net_term_days": 30
    },
    "preferred_locale": "en",
    "metadata": null
  }
}