How to set the Outlook Email Sensitivity using API Call

{
  "message": {
    "subject": "Meet for lunch?",
    "body": {
      "contentType": "Text",
      "content": "The new cafeteria is open."
    },
    "toRecipients": [
      {
        "emailAddress": {
          "address": "Email Removed due to security reasons"
        }
      }
    ],
    "ccRecipients": [
      {
        "emailAddress": {
          "address": "Email Removed due to security reasons"
        }
      }
    ]
  },
  "singleValueExtendedProperties": [ 
            { 
                "Id": "Integer 0x0036", 
                "Value": "3"  
            } 
        ] 
}