{
  "manageEntity": {
    "action": "Save",
    "entityId": "1424988113",
    "entityType": "Track",
    "nonce": "0x8062df744ec618380ba5bb0b2de0ade20897d87746bc324d77b0726e083a084e",
    "signature": "0x32253319d15b907deb9916cae0b96a946cf05a4d5f35da8d355ff94cf13bb75b7da969e9813552cc7088edafd5cef84fa3df3369cf5155eff5e43d4aba093dd41c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}