{
  "manageEntity": {
    "action": "Save",
    "entityId": "93654716",
    "entityType": "Track",
    "nonce": "0x52072b13cc20e94de55115941163c9e4326a7aef7e8420e689e751104aa7aa74",
    "signature": "0x18303be9c4c7bd558f8f700096f4958962a0bf239f1cf9acff94b30caf78eae1784e365aad22ab287156afc078e1f81d13331c2745b25b49ca2acd1ef467ced91c",
    "signer": "0xdD82be9126FB72E07c8f011C7AD5c9e6C598D44D",
    "userId": "845409072"
  }
}