Model that describes the currency exchange rate change log.
| Name | Type | Description |
|---|---|---|
| currency | Currency | Currency. |
| date | Int64 | Currency exchange rate change date as Unix time. |
| id | Int64 | Log record ID. |
| last_update | Int64 | Change date as Unix time. |
| user | User | User who made the change. |
| value | Decimal | Exchange rate value. |