{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843258957",
    "entityType": "User",
    "nonce": "0x7454383a05def088d86c506abb747870c676d10b61cd450d256c9e6dd0d8db86",
    "signature": "0xc245983a618c3a90e13611587edc867b6617edcd7facf71de7ed1efd7e587b444f5095f562faaa5b5c8061f6c9c255e8f36112d7fdccd517c67e91a5d118b7bd1b",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}