{
  "manageEntity": {
    "action": "Save",
    "entityId": "796920107",
    "entityType": "Track",
    "nonce": "0x1396d1eb2d389cca3c717627d803448a7b65a9879deb09ef1b20c08e4af91135",
    "signature": "0x9d742de6fe8f58c34a39c832fa56c0c3a74ee4b74ed05da4cf372d14c6c336540b9687859dff671ca4c5be48d9c6ffa9b8760c6dca9de856cf0ade91defc8d9b1c",
    "signer": "0xf954E35976C0aAaEC2968197F2a371Cc99E7C81A",
    "userId": "102143"
  }
}