{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "172489",
    "entityType": "User",
    "nonce": "0x558f2848c9b86d5131ccb3ddf6f4638b3dc030902b9c56988692f77f3c7ea166",
    "signature": "0x785ecf5d8f1fd8084771b683c69fe31455577d43867ad6d4cf52362d6acf6b961a03121594f9e06f80803f7d7799b02cf3eca19bf73ae99dc932252b4bd252ec1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}