{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354441",
    "entityType": "User",
    "nonce": "0x647f100a23fd720f1a6e1936661626583cf4713b1fb8f6181c92fc0211972e33",
    "signature": "0x433e9b9cc251c12fdeb826f0aaabe9f0c2a363163e48e6475a349855afafc2d8790b7147561f7fe1d6c06cf93a4b9be0a552d618266d19da2b88844651ca448d1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}