{
  "manageEntity": {
    "action": "Save",
    "entityId": "1195361748",
    "entityType": "Track",
    "nonce": "1792540870686267613",
    "signature": "0xabfcb5c4d1f75cfdb03098ad918c6fbeb9f293ae68ee16d5f5782364d2656db2524dc7b18387c0e47ecd1adf4c43aeb61766731767957ff8faef86db51be07881c",
    "signer": "0x1007e09532BE90331E035838A9E2E0700bB9741a",
    "userId": "329513359"
  }
}