{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xadadf1dbb29ec1463d34758bb8ef3ab8bfc32e57d1ae0df13ed00e40b281a3fa",
    "signature": "0xc116a025bce1fef5bc235eb8b01ea7c3f7da755b5259d98de5bf8322e453ee097031214f8200f05449273c156205e731a6751d2b78ea767bd77f5b4f9997d9e91b",
    "signer": "0x337e8de6D2465f30fe8f318Df5bF139BFaBF7634",
    "userId": "256685174"
  }
}