{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7293410582cd6b7be71d29c0cdf481a15e3cb1398c860f1f062d527bccea0154",
    "signature": "0x4085701691408db2fe5efe09a398def4b0b1fd637a353115f66f5af24085da21139725cbe8d9694775f2a992a90ab19e0eda20ffe07637b83dfb1c7b4b41dd8e1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}