{
  "manageEntity": {
    "action": "Save",
    "entityId": "79556",
    "entityType": "Track",
    "nonce": "0x92d43913b911db488b1fda77fcaf5a058d8a935ac7ab7c657f701271fc89b040",
    "signature": "0xd423f0ae50f63556b65d4d37d7c8e2630d28e6ae31124e903d8f75c076a91c42473c6d91892111f0c1e50ed0c5c754fdb9db867980dffd8eb1e7c44ff1927e3f1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}