{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "437545626",
    "entityType": "Track",
    "nonce": "0xa517c1f4246c416064c9075ce2a57713355229696647256285dcdb12e697db07",
    "signature": "0x710bba628cc665c67caa683b2448a4685b9e4eca9dc9ef1c1e193ac84331b5dd22bc5d50fa55bc8f185e263f5ae1a9459e66a01de998d0a0ba34e0132fb9deaf1c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}