{
  "manageEntity": {
    "action": "Save",
    "entityId": "1169306747",
    "entityType": "Track",
    "nonce": "0xa3d3ed7a7ea92b9926c1c495f33d2c28144b2b06f561281eed85b6ac043b9b8f",
    "signature": "0xd627aa4f915737c5718e439d9bf8e1bee95afd7591c22b47c71c765507c15e5e68d7e9954d923eff208e75c24192a3fede2f1dde1289191f761d9d7bb959f31f1b",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}