{
  "manageEntity": {
    "action": "Save",
    "entityId": "1066169344",
    "entityType": "Track",
    "nonce": "0xbafd239b560f209eb04c9549d05fedeb21f26ea0c6ba15d58c99a05949b310c6",
    "signature": "0x10895a18ca0a18e84da01ad768df65cf1cc1c744f0306c2822babafdc2e03be1035bfc03592993f5db3faef912ff8ba5be2addc34223240d009a082edab19c5e1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}