{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x325ded5dab9c73e8cf2b89cf770ea906368cfaf14bbde46f86d21698eea657bd",
    "signature": "0x598cbf6d78253d407fec41bed610922a115e78aedadca76974409dd45d070b105022ff2525b99208c9f3e6e54da8b4543d95f0a57fffc3de95c634bb2fb279ae1c",
    "signer": "0xA2ED571bCe585a15704A0AA41c033dfD6E7Cb796",
    "userId": "735707434"
  }
}