{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1440611",
    "entityType": "User",
    "nonce": "0xdadca5849808418aeceeec39cc1e50c5609b8d265e1a3ac2747be5de57ca2e44",
    "signature": "0x43b612a66c062708d05ae7c3f72714c57c3a6fc4f2ae799768e08e7571eae262134ff78bb409f85af793adce18589dc0ad19e908fd59b8100154942be65024731b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}