{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120001",
    "entityType": "User",
    "nonce": "0x8fb72bf8e7dddb3625281c03b3d9d8b3cc1b8d635b979928d25f573b27052c2f",
    "signature": "0xe14d8fe278638cb6231168c89835bd7f31c7c15b272d8405a72f011fa6446f887ac339be43b3fa0e91954b0447933c88f5fcb9a847fcd4d874948fd310628b4b1b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}