{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "579147944",
    "entityType": "Track",
    "nonce": "0x33a77904eeda7f3718cc779ade23f59b255facc8413c8c7273dac57d8266e782",
    "signature": "0x3e0ebf84d641d48de4846f9cf1ee94764d5518da43a1063129fd68afddd6e3830a34155daaeae26bd8d917d8d0a833f4985e1f658d2e0e87dcaef67b0eb45d341c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}