{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x205ba43e8d26b1cd52014c27b570f2a4da5f1e204a406d64687cdad3ae05f420",
    "signature": "0x37c161a5f835661da492c7aa3936ee806dccb65f185a27cc6997db08494debd01a0242044e32a02f096fbbe9ae4bc6daa40e7abf9a7644c351b3620075bcdbaa1b",
    "signer": "0x7dA561c59e20634Fbc2d2d7A9EA8Ca0898294EEe",
    "userId": "415418028"
  }
}