### Event Type

- **Type:** `const`
- **Enum:** Required
- **Description:** The type of event that occurred.
  - **Allowed Values:** `card.created`

### Card Token

- **Type:** `uuid`
- **Required:** Yes
- **Description:** The token of the card that was created.

### Replacement For

- **Type:** `uuid | null`
- **Description:** The token of the card that was replaced, if the new card is a replacement card.

### Response

- **Status Code:** `200`
- **Description:** Return a 200 status to indicate that the data was received successfully.

---

### Example JSON Output

```json
{
  "event_type": "card.created",
  "card_token": "00000000-0000-0000-0000-000000000001",
  "replacement_for": "00000000-0000-0000-0000-000000000000"
}
```