{
  "manageEntity": {
    "action": "Save",
    "entityId": "1793170962",
    "entityType": "Track",
    "nonce": "0x30ceec2c519fcde4efe9884310ef4387186f2be29012d4ff27cf245f9edfad74",
    "signature": "0xe699006b8f9f6e822d26f290186ee35bc0622fe30cbd34825af4c488f77a930b0ccd7f81061399704de0d4ba122a2d55b44a2eda329b7cfa80da768f1fb413721b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}