{
  "manageEntity": {
    "action": "Save",
    "entityId": "2001613160",
    "entityType": "Track",
    "nonce": "1792386371510769258",
    "signature": "0x1d283d02edd5d838bc303d0e751967d0f0bcd4abb46ff855a975cb79b3bb0c747a77d7af94bf59464e9229ff8fa7b01bc09d18fded1f803b3f0a0c6a9eb917831c",
    "signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
    "userId": "881446128"
  }
}