{
  "manageEntity": {
    "action": "Save",
    "entityId": "92598",
    "entityType": "Track",
    "nonce": "0x9af9e7e7be179338a476d5d0e38df8e5fa25e3ec34a3e6b80cdb05a01a2be0be",
    "signature": "0x8f1604da986aa5e6fa9d6e77f43beb11bb7b34ffdabcd7c488f48e55adccaf40235a5fd2a048d050d2d21f16241034a6a0892f87b982ccaa603b45953a8ac1631c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}