{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbdf7e7b7063bfc9f108a8c256aa34d4cccf01383acd1e41303786e3db8b7c555",
    "signature": "0x52018bdf2977eb08d90e53e6daedad6be436767412d7b1881c66186625ac92350842d695622be705c634ce448d26fffdf8f5458fb01a82a4e466b0afc95459ab1c",
    "signer": "0xCFAd6E193e3d4A3A3243FE7D3a1c7F638f121Ae4",
    "userId": "88904142"
  }
}