{
  "manageEntity": {
    "action": "Save",
    "entityId": "353470422",
    "entityType": "Track",
    "nonce": "0xe0ac0caec9db2d92642bca711d683ea6b898e16f9ae0e41787cfc2963c6d3492",
    "signature": "0x060ca582f7e0fc49f0563f91acbd6db867b77a4d5ba814a2f0b0e95c4007fa37670c6701acda12631cabd47fc2a890d2d9c31e5e9776dcf8b8925bddba9d050f1b",
    "signer": "0x1a08B067c1Fb3c46dDA49f6d1f590e00DC5baFCd",
    "userId": "60095054"
  }
}