{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140",
    "entityType": "User",
    "nonce": "0x7831f2043d2734f54a22ffa219b3d5d6e33fb0443902031ced0d1b0d69a299af",
    "signature": "0xe640c829ebe68af547114a75791b3b53e635136d447495f31f1ae8dd54e4c9c5448aad143f26ec0c7b19c688534135f8a92c8e1ff0963b5980f73860bef1fe5b1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}