{
  "manageEntity": {
    "action": "Save",
    "entityId": "2056506848",
    "entityType": "Track",
    "nonce": "1792362240118054853",
    "signature": "0xdf670015fa69751b19489c3e7b105694ede2b7e142fcb8ebe96019622a43110623b5dc5414215d5cdcbd56ae2a131dc3e0a3d7b533a5213d7d0ff81b22cbcfe71b",
    "signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
    "userId": "827420993"
  }
}