{
  "manageEntity": {
    "action": "Save",
    "entityId": "11496642",
    "entityType": "Track",
    "nonce": "0x5a09fa4a7f818d9a035fbcd3c2cf816b47b35297d6ae366584799c70a1cc963e",
    "signature": "0xbb4fe46b68c7f1ec6d97382e54c564bc6e9b22767f16f6a4bf322a6b5ab275a455fe14847de867624dd7d86b2137c520308ebc648d475dac5367c729ac1af3611b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}