{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe8129ab2789bcbb12b4cd8e9728a7bfb7e08882726ff75a4e977c753bd15a279",
    "signature": "0x3bcf018d9c35f632ede44205dd4bde1980f7fee6a9d5abfea4122cf519c33b236b06142fec349c3a4ce997521cb0600ebfa3df0e6a4d55b447778c714f89b9e71b",
    "signer": "0x1Dc530176d8cEdDF4109A57E7ABB24364cc79a3C",
    "userId": "148833546"
  }
}