{
  "manageEntity": {
    "action": "Save",
    "entityId": "169096",
    "entityType": "Track",
    "nonce": "0x0b7fa207e7b7cd26056b5966a762cee13c53aaa0e2c8c94d209c409a5957636a",
    "signature": "0x6b356b085ef13969bacc8506130e475aaa86a1621f50dfd39fbce578ae881acf6168af244d90fa73b6d867d534a9cf25518878a0275cb8691d3d4d1a666315d61b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}