{
  "manageEntity": {
    "action": "Save",
    "entityId": "88038917",
    "entityType": "Track",
    "nonce": "0x2a410555c5af04c0707fac0dd4be15a4aa4a3d467cfe764f2664d70cb05091eb",
    "signature": "0x2f45dccf809fb372316fcb34e378962a0792e34153f613df27d903a89677fe9c6d67983c381180aa9f13d5a3a4845d2ea113635fc00de154c9a82cbfd41b02ef1b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}