{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x55794dcde1dcfe53294c1be0905086da502d7625aa05a09c11c857a66f1a47fe",
    "signature": "0x11fc2e5227296fc1bfc9617904176179b6bc783d376443c345fd712ae72551a35522e1844e4cd61071af803bd67f3979bc3a92f046cefb423bcf751beaf95b1b1b",
    "signer": "0x435cf294476b32E672CE5c2A0f51936ABF460c3d",
    "userId": "304116661"
  }
}