{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "799399760",
    "entityType": "Track",
    "nonce": "0x174f0c42279320269d0f346a2f7d675197084dced44f83a24541645ad4b4af7d",
    "signature": "0x8907cc5e6f38ce5de55c92d4accca3635ad42e1f10c1ae1d792dc4e8d09b9f664b7bf410c65754692752aa0868e95c7110844ef253f03c54c6a36b1ce35ebd601c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}