UsageEntry

{
    "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
    "created_at": "2019-08-24T14:15:22.123Z",
    "check_type": "single",
    "emails_checked": 0,
    "credits_used": 0,
    "status": "success",
    "error_msg": "string",
    "metadata": {
        "property1": "string",
        "property2": "string"
    }
}