Recognize an invitation using its private bearer code

curl -X POST "https://example.com/v1/invitations/preview" \
  -H "Content-Type: application/json" \
  -d '{
    "invitationId": "550a4884-8473-4f2e-a6cf-551c16767d59",
    "code": "string"
  }'

{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "workplaceId": "4989ce91-52f9-461b-87fa-af1f28004fc0",
  "accountId": "3d07c219-0a88-45be-9cfc-91e9d095a1e9",
  "issuerId": "d481fa31-74f9-4e8d-98ce-a395773acfa0",
  "kind": "agent",
  "role": "admin",
  "name": "string",
  "state": "pending",
  "createdAt": "2019-08-24T14:15:22Z",
  "expiresAt": "2019-08-24T14:15:22Z",
  "workplaceName": "string"
}