{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1975126140",
    "entityType": "Track",
    "nonce": "0xda9ec1977b5254687a85aa47d25a7900fa5295d1725056eb12825b37bed02149",
    "signature": "0x9c4ddddd6748af20589a9c6373bc4a28c276e090062051f13ae93cfa0c6ffb23717c7b8e597eeda497fc795939848776c8afd517f881cf674dff3142d78434f91c",
    "signer": "0xB755CddA6da08Cbad290b9528CD0dC860f9f7dd5",
    "userId": "536791428"
  }
}