{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "964641",
    "entityType": "Track",
    "nonce": "0xcc97080e2b8e347a94e5e957b63138c2f295075378f71c647aff571093f15708",
    "signature": "0x56a6da03c9a7a4b28edd94e3f33a479ceaebdf1a56daf1f67ecd4c4626dfd9ff44fbb5166bb7f7898f50533a71bff10a053534d8ec559da9a92da00ce3bbb3dc1c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}