{
  "manageEntity": {
    "action": "Save",
    "entityId": "1041590822",
    "entityType": "Track",
    "nonce": "0x526c04d7d89d79d9d81d3f35725efa60e50672465cf9b72c0f710080a2d6b496",
    "signature": "0x8ba94eece9a079b55db7aafc7aeb9ccc119c5ace456f187e5515ddf4132c4bcb37b1473df53cffae7c911f37254e70dece1486c62441e6b78754b1f4c4d2240b1c",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}