{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1827899013",
    "entityType": "Track",
    "nonce": "0xf376601c17977a403445e87978f805aef940e8ae1d8b7e4de1a729e591d518dd",
    "signature": "0x1142694b70a4c77eb51aeb7e8438c07f29e8e95b8f07cac0759657aa5a81a68d05bc576822e960c3bbf27674cec0e7707cf2e051762d9eb449af99c9fbf8264a1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}