{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16326",
    "entityType": "User",
    "nonce": "0x684dd1f1a7feff876aec62e132906920469b2294d92a6b81f91aec9a2bd566ed",
    "signature": "0x36885db4bd6ac59b748b069b074e390d8244fe14a394864e3805dedf3233c4a509d7ecf1a029c16da2f727ba2fe822c040eeb130a56f7ad322614cf78e1e7bc61c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}