A wrapper object with fields that allow reference to a Toast entity by Toast GUID.
| email required | string |
| entityType required | string The type of object this is. |
| firstName required | string |
| guid required | string The GUID maintained by Toast. |
| lastName required | string |
| phone required | string |
{- "guid": "string",
- "entityType": "Customer",
- "firstName": "string",
- "lastName": "string",
- "phone": "string",
- "email": "string"
}