{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "195929",
    "entityType": "Track",
    "nonce": "0xcf300b73ebce045db9d2040cecd9b3cc18f1dafd07a7b04bcf438c94b7e51e6e",
    "signature": "0x548f4d368f83d62ee1f18161d07722b01a4f9b08a76891f0bd440a506a5ed9832978e9b850ba55f774b4f20d4990eedabc7652fae07110fa2a10f0b163ba042b1c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}