{
  "manageEntity": {
    "action": "Save",
    "entityId": "514033",
    "entityType": "Track",
    "nonce": "0x60db144f23fe3a125317bdfeb76e733c0cea5b4674d8400f37bed6c2d19242fd",
    "signature": "0x31b44b5881cdc1a71c14e1101455bba60be36100bd844206bad732c71d7b854521f0029a7d3739786b4ca1d98c4e62c07087432d5027c283e24a27b5c9a303bf1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}