{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148478",
    "entityType": "User",
    "nonce": "0x54b47523251dcdbb98d2b59837f798e6aeaf07c94926d21b704fcdded90f2cd1",
    "signature": "0x08876975c0179475f81458c31dc17be8039e1089d9d4d4f71d81f105dd39c67f18817cb06cfd9980f1e6360ab86f8a9c8bbf3ebc563aa09aae25227cb41938641c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}