{
  "manageEntity": {
    "action": "Save",
    "entityId": "88010",
    "entityType": "Track",
    "nonce": "0x134e15fe80d374ecc534af6de057e1361cebbc9f6db2f26d69f62e1e06ee86d8",
    "signature": "0x52241569dda054c6f8dc6735220b81b6c7b888054b6ea2d71f4c6634bc39320b15717b629ac78bfd6805d37949ff422ee2b37ca9134e12227f3f425842d457c01c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}