{
  "manageEntity": {
    "action": "Save",
    "entityId": "1056169984",
    "entityType": "Track",
    "nonce": "0x350cab5865924e29d207530c5148ab23f0bafd52703873e20514b62cf0e3368d",
    "signature": "0x0f006b06cb688f7be69e4829fcd370c640832b49fe8348f8ddcce07de1991059717fa475a87cb3f29b0a3760c1928b3bb948d4718daecf6723a9137edbdad3b61b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}