{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x87c44c3e4e879696c80fff0135380e41ad2600e33722763a7c2b56af7ab391f9",
    "signature": "0xaede84318cb5e42295611644adf1f9460d0c76b187e8f3c6a3d18f41ff0cee9224a114dbb93580de7493b79ba4e75280d0e513c600e377ca74bdff3454a70f1f1b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}