{
  "manageEntity": {
    "action": "Save",
    "entityId": "1929800522",
    "entityType": "Track",
    "nonce": "0xe7768279a81b64dddac04f4f2c02b2ce0a87f650e6532efaa762515d8300a06b",
    "signature": "0xc43ca46999a2ed6507ac638a18a7da819408ceec5848c4fe235e4abdaaf182e26e7b9df503dcba5758304db471e54963400db2ed08c2538a10f0d73403f9ae7d1b",
    "signer": "0x7e0E40f326141472DFE92646b1602dfb8c6fcc35",
    "userId": "756976160"
  }
}