{
  "manageEntity": {
    "action": "Save",
    "entityId": "1480513746",
    "entityType": "Track",
    "nonce": "0xe083287cc0e6f84a493cca98a601dfccc8ac36eedeebb52eed5687d15cfa8744",
    "signature": "0xb079d4caafa15ae182f4d0d9d8e88d9b657266e4448444281eb33ab7be47259f5e444cd18cc32b118f4282b4fd6a9d174c6ad24a865575ef9074d2d5ee1089a31c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}