{
  "manageEntity": {
    "action": "Save",
    "entityId": "110583598",
    "entityType": "Track",
    "nonce": "0x77f08306fb3d3821a655b89108c987e58e72b25a05c2bd26b43c67054950741f",
    "signature": "0x525a8ecf82415bf7223115ee426802c83f3775c42ef0002c49401b96c3ebf2b723a55a068c27037e261b9f599715b7ec8f4e29fd21107c8a3b9b78bfe53531e91c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}