{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "783144909",
    "entityType": "User",
    "nonce": "0x5c20b5c903a5705a02768b56e4e39916e1ea0fa62f582cbbc014971ff3789641",
    "signature": "0x13ee0d317dd5477e7d0df56b113cc05395b94a5d2b906b0e322c2392ba8b95105ee51643b390f8e97a8d903fdd78230e174613068336c74eb95c9ac2a6bdc23f1b",
    "signer": "0x316933E449A0b429014E405447c447C9Bc472bE9",
    "userId": "451684863"
  }
}