{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc84fb98972465b3619cf48fb9df079b4bc5bacd7aeb8d046c8adf9b0d1ffd46d",
    "signature": "0x9e2a9904d5258919f357752940fc732e2febd8081d5d2c5e84a89dd1ae5cdff32ed53f6a931019e722390197fcc1633272690cbed73d8fd91000ebbb325137361b",
    "signer": "0x9424341Bfb323e11bCD354a661d139CBCE1C4be9",
    "userId": "259214410"
  }
}