{
"manageEntity": {
"action": "Unsave",
"entityId": "1432373470",
"entityType": "Track",
"nonce": "0x16d4cd054ff171c6fc4bb495f82e347301f8f98e98330aeb0e24be2a1ca688eb",
"signature": "0x81644e3838234e6e293ac113e8e9ed9a8b3bdd8133de9ef8c8bc7b9da1b81e4623e4f7ad254944a5331f61e2da095bace7942a56bdbce427ffea0d5b713731981c",
"signer": "0x9B7108b03e3F11a5e48e86d0Ff4e803664369133",
"userId": "269019485"
}
}