{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43284",
    "entityType": "User",
    "nonce": "0x72881dfc6cb1453764d1be7417fa6f0249d09a1d63627d4b8cbafb4be6f3e394",
    "signature": "0x3cc202d36447d2a3bd60e68e9af00fb47916b29733d588103d140e37ae5ffe3b6ce2ca5bfc7e077a6e1eb70235b08f16be8ea14909707a5a43d28986b5efec631b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}