{
  "filter": {
    "ssn": {
      "$binary": {
        "base64": "AWFhYWFhYWFhYWFhYWFhYWECRTOW9yZzNDn5dGwuqsrJQNLtgMEKaujhs9aRWRp+7Yo3JK8N8jC8P0Xjll6C1CwLsE/iP5wjOMhVv1KMMyOCSCrHorXRsb2IKPtzl2lKTqQ=",
        "subType": "06"
      }
    }
  },
  "find": "test"
}