{
  "manageEntity": {
    "action": "Save",
    "entityId": "32680175",
    "entityType": "Track",
    "nonce": "0xd418a7d2045e9cafa31bfda03520d6e09b84d12c9b5e97b625992adfd183222f",
    "signature": "0xa989c4ceeee0220e163cec9818f46c9bfed11bd3ac6919b52bf5508e536ee5d04489e1c678b6f632fdc0f1a02f518a4c37e998bbc1897b41ddbc2226954db65f1b",
    "signer": "0x4dafC3e774A1033C5604372f17ccBDcE545f478D",
    "userId": "889450527"
  }
}