{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203753098",
    "entityType": "User",
    "nonce": "0x48fea6ddc8a7475b3657a952bbbf3101c30693f2a4bc7941682e8e7ac81cdc0c",
    "signature": "0x595b0a44cd616b6f5bcd3f36a8a05e1f1bdbb26274334858a0bc656e462f1dbc338553d212508c2a3843b08ac2d408e3f211f2e6a12918cbb7b92f56a9f989481c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}