{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "240594025",
    "entityType": "Track",
    "nonce": "0x020fe1e9271c940d446a1b0de6746d90e8a5fff623546eaf94e1b26ec0f19dfc",
    "signature": "0xcc6f76e2f8f3be3fc8ce366fa1f9adcdf4a3970bc3aebabdc717748a793a0206518b56824e9b65a7a992d05d244be6fd593b351e4568ab5a0ac1432ff5194a711c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}