{
"manageEntity": {
"action": "Unsave",
"entityId": "263643481",
"entityType": "Track",
"nonce": "0xe92baa85cde9da9d154a00b37b6860d903078f409793ffcba59e9b3b2ab73cec",
"signature": "0x234d823634c71b92af85329a56bcc254db3d6904e2b87d094e82909e95bb8ec5096ded91c775e9675ae661a2576c02c5e89216a3087b0621e60733e791ab71a91c",
"signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
"userId": "377610060"
}
}