{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "799485",
    "entityType": "Track",
    "nonce": "0x4d998d36dc2e871405abe95f316adc6db9e2ade3af9d2b8ff0c44e50decdcf86",
    "signature": "0x16821c0ba3493d6773f4bbcda5b83d37515febfc05df264301e2e9e66a400fe57596dbadde11e1d57543a136df0e3b3f8a37f3fd80650abf7bab754368e728721c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}