{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xde84e65ee7b0b9def6927ae1e47141b283fc53d5afc5a6a96f1a4fb6038cf164",
    "signature": "0x8e6eaaa4bea9add6c651f7e435bb4302094df2f19a8c4ae5fb41fb5c759b354d619685ab19e5de3fd799d03a8a882c28cf3b2ec1bfc301f20e7c98d9c44932d01b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}