{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83428",
    "entityType": "User",
    "nonce": "0x7af2bc180e5fea8e8edeeeada5836c07655e10096c5870c7a565e6eb0390285e",
    "signature": "0x9986722954d9d69467740b3534f8887100c29cf88c7ee701e7c6e8cccc53ec6a56f001267b59559404037c7a7e9016026bd428515aa8b57c5dd35d071d514dee1c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}