{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "1345",
    "entityType": "User",
    "nonce": "0x21426e08e5e67b05df73bade31f82ab907df6cef77eaa37567e5138d3ad75641",
    "signature": "0x10fe927c0d9f3685f3c28e6fd7ae35ff1f2fb82efbec1c294688cd99bafea33c7a62938025dbb442b74f97827a9e87485fdb8f8d687e88f92ee60c157e0de9a51c",
    "signer": "0x64CFA35C141c7333C0b6f9008Ea3bE8e5dCB0B8E",
    "userId": "384526"
  }
}