{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "467213409",
    "entityType": "User",
    "nonce": "0xde7c13a4a7bfb19a295df7f5637d9b57fc621e45c37da09aad38e714c622a1f6",
    "signature": "0xc0283f278cdd1da2b27cd0b1d805c55cf0bca5e8fb23d252ee81a43eee14a1575c51de781c0f1247075fda1342ef527abd40bee7c1f5a130aac36d1d16f799a41b",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}