List Signatory Invitees

[
  {
    "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
    "first_name": "string",
    "last_name": "string",
    "email": "user@example.com",
    "user_id": "string",
    "status": "string",
    "is_existing_user": true,
    "signature_type": "string",
    "weight": 0,
    "period_start_date": "string",
    "period_end_date": "string"
  }
]

{
  "status": 400,
  "message": "Bad request"
}

{
  "status": 401,
  "message": "Unauthorized"
}

{
  "status": 403,
  "message": "Forbidden"
}

{
  "status": 404,
  "message": "Not found"
}

{
  "status": 500,
  "message": "Internal server error"
}