{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xe33aefd32ccdd7dae99b63e3830537e8320346b1c37f10956e8984449e227890",
    "signature": "0xd4e4588305bc792ad02bf3ee814a7bb4e2eda9343f18b4391c7985fe12a7575636dd585714edfcd4660ac3380e5c375ca7253ca4fa74699c2ce521f12ed85bf71c",
    "signer": "0x14FF2Ce3bf23AEeC9C140996251F6f85D8e99431",
    "userId": "53273933"
  }
}