{
  "manageEntity": {
    "action": "Save",
    "entityId": "1767020973",
    "entityType": "Track",
    "nonce": "0xdb3b69711d2a3f802b4ed459f56cc00b9da1e80b5f5817ae4ecef5e0863d2072",
    "signature": "0x2206da9219938d6372a7d2ce1109b40f161805ab87991fb73f2992842fa9bf821c49886f336d52401291883481d1e10bd8b9a32590ce32f75ac47112589032401c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}