{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc9d09d30d8a85772cf7a7bbc8b9d61cf772429e07f6bd5c8b6c1cd5796970233",
    "signature": "0xcf6decb8c76a07ce37e48144d4b1f441a8bb7d174e5ee138200c97e404f1f4247b50824ba5698ede11dfc7798f12f82305fca2268b1d520276c6ffd1f3b6dd2a1c",
    "signer": "0x312b5C3647baE91C2fD8A30a64Fe5F6E9ed848d6",
    "userId": "332185878"
  }
}