{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1065598196",
    "entityType": "Track",
    "nonce": "0x4ad00bc654363bd0adf8b8be59b2f6f29745d5b700330c8a0379e76fa393677a",
    "signature": "0x652c472a9579c9f6cbf2efeb3c97467170c2984b7c99eda2bcc236733ff5ff406c41e1743f9a41867522c6b99f59e93c018ef393210475e335da92aedae4d1ae1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}