{
  "manageEntity": {
    "action": "Save",
    "entityId": "2024413441",
    "entityType": "Track",
    "nonce": "0xb1b6d42b5922883162962457dbadcd0622fb35fc8bfb24c19092d422e8fcff45",
    "signature": "0x4cdd01c475e260463f51976ee183be2e4c12a18f2d589a0013fd72ad1107979208769241e7e310260267dd8a9456e1ef7d733f9b3195eebe30dd366c3d8bb9b61b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}