{
  "manageEntity": {
    "action": "Save",
    "entityId": "1067037",
    "entityType": "Track",
    "nonce": "0x2a5a4ab0ffbaefd460e0ed2045c9e31be2a276b5079029116d72ce17ac4c450f",
    "signature": "0xb7b4c964cb5c7613b857512ab2bb48a3078b8dc120898ce3c7276962de065fe40c2232ce8dad1a23da726baeafe22a0afe3a868f5338abecee2e2528a814a64e1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}