{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28393",
    "entityType": "User",
    "nonce": "0xae32f5f60ff7cdd2f2597156873e07a938314e70a6ac12e18b5eb01052ef0181",
    "signature": "0x33511d4cd7f30e575eae745a50fd51ca5fb86c6c06b8b49da95c4a23d1c8965b334b8ac06b742969bcc545c3987a281194cef0d1903968407c34cbf37bb346501c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}