{
  "manageEntity": {
    "action": "Save",
    "entityId": "534607532",
    "entityType": "Track",
    "nonce": "0xad21133c60f677777b15d719973fe9b32c13fca34f3d3582ad2f4bc1996c4311",
    "signature": "0x226e710abfe975ef9c5c45584ea297c47d8857f5a8f50da5d64ef335f719b7997860d4e0aac42fce4428cb3287ac6901b40dd7df381c3bda99f064e7f68546341c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}