{
  "manageEntity": {
    "action": "Save",
    "entityId": "92580",
    "entityType": "Track",
    "nonce": "0x1f3915e4850bbf617a2566c84f95e76e9e9b1a272bc1acf39183a2cc6f74fbca",
    "signature": "0x0ca1ed12f7b96357a1dd5f6730071408e0aaa7d22481a60f842142371b5032cc5d6d5bdd55271ec054867be3b2c55a105c3ce936e5cebe157c8bee18c8ff29dd1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}