{
  "manageEntity": {
    "action": "Save",
    "entityId": "1706241294",
    "entityType": "Track",
    "nonce": "0x053e7be5263b71c42c682cb92c6c8cbbe855fc9413729382bce07ed9abe6b8a7",
    "signature": "0xa2733911ccae738d434ee611d4c74aca8fa9173011ca246aec507927be777372284b31db5bef5ae9376c670e0392af30bc188f7ef1ac781048529c6006bbe98f1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}