{
  "manageEntity": {
    "action": "Save",
    "entityId": "1692151497",
    "entityType": "Track",
    "nonce": "0xe48c9199ec29d872621b72e675eab85eedcb982888879425dbdb2fa0c195617e",
    "signature": "0x039d1d09cdf3c5a985e9cd0c7d6010a08a4f854b789d8337e0e8a624db3b96e662a6eda31418151c96034d7cf5e52ef23596b1ec2dac1870578d7e7be4c9c9651c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}