{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103753975",
    "entityType": "User",
    "nonce": "0xaf327156531b71e0608dcbbbd7fef1bf93eb5bbac5ef976e4f8f25e9b8b157f0",
    "signature": "0x5f59a3d0af4d8747f789eca6e78ee9d4110707efa4730de19a713131f346759e193b4335b86f850b9949b55754c5c9f519faa5dacfbeaa6f83e35fe69ef139361c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}