{
  "manageEntity": {
    "action": "Save",
    "entityId": "2095492882",
    "entityType": "Track",
    "nonce": "0xb0f5a80a524e7e83a6c60fd473dbe1d43b066688f0ce8622a5335821f637150d",
    "signature": "0x59906e4ea944d64a7ee2f1b58a3dfd3157d9e18ef945bd59c1dc012255409dac63c3d24dc8c6a51ae6206373f0a44cfb9d1713732f99808102efad344cb0c2121c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}