{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "608016415",
    "entityType": "User",
    "nonce": "0xbd05f1553e05c859a04296f9c28c107f9e8e3eebd99056b511a83ce195bdab8c",
    "signature": "0x8dad208b11c27d2e044469aeba4ddd8323678030448691c1bb5c1c7832ad376270d1d7a9dba598c06733decf68f882103caa59cb78f265759768a3975e1c50b41b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}