{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "533764864",
    "entityType": "Track",
    "nonce": "0xa4e51737abf2ca38308274bcba3c22701409c2a806d244514efa335fb0f86a02",
    "signature": "0xa7b22f1751148ea6f29358871bcc989322d457a2ab3fbe091fca08e63d7102bd288837ada924f661db68429721affb56088442a4c2240f1f6f5a1d58c1ed3fa61c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}