{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3b88a82a48d09e918c0c4822184ee4d4b05ee80c222a195eff5abd08dc767c99",
    "signature": "0xf755107574aaedcc32f84efeeb5a38d1afea6ee00871507b7edfdc9488a272465023b5c6251530e5e5721e4987be36e98d820f354bfab657c86db8a9cdf5c5781c",
    "signer": "0xBA13D48D27606b5da80c3c96a9096cc0c7b814F3",
    "userId": "192842294"
  }
}