{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4744",
    "entityType": "User",
    "nonce": "0xc8440095f11dd393724eee8338e44830c230468ee2f4c89ecf27a8b514c8ac32",
    "signature": "0x0b2678c8dc912d7a64a5269e456eb0659830552ed04e93473505077983b2f5a658a20c34a9f6081b2469571cad5e611bfe83bc133e28167a737ed21cbb8b4a561c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}