{
  "manageEntity": {
    "action": "Save",
    "entityId": "1495110395",
    "entityType": "Track",
    "nonce": "0x614f0f9041049a6cd066ae2f92222562eaeddfdf81443088f443d619fedad88e",
    "signature": "0x6e57fe69df4d953914a0a8ccd7d12c8ecef30afe47cdfa495a6681ecddeb4ff544cc59be1230417e43962c776f93cde2fa7b468eac2ee50d280d1ca2741af2061b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}