{
  "manageEntity": {
    "action": "Save",
    "entityId": "1482428073",
    "entityType": "Track",
    "nonce": "0x5dde4e585d1705b22308b7b989a2e0066a28133cfac1e274264a58fb8f1229dd",
    "signature": "0xa0da63cc7bf439ec413c6f2e59a441101962b5ecc68aa1bc77f690456c238d8466677e76956246c9fa0c23234428854dde01731b61fe90661c7b1475393e23b51c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}