{
  "manageEntity": {
    "action": "Save",
    "entityId": "2070534410",
    "entityType": "Track",
    "nonce": "0x57827437db54abbfa833ca160a90f07ad1ff0f286988f18f45dc89afc09439f4",
    "signature": "0x35ff17fa1c247a19253dbfa2540efb9019a1433a1f0a8872444e6ae4c94c888a1c2741b59a688db844769dbd346a087e2a9dd1a7e349b4b9c5e7b96fa52dd5781c",
    "signer": "0x3381db9df74f33A3331BB336Ac6EE89520A21441",
    "userId": "172299"
  }
}