{
  "manageEntity": {
    "action": "Save",
    "entityId": "1048080414",
    "entityType": "Track",
    "nonce": "0x2f08c6f075871bc91ae0abdab22f52a29a6b6f266baeb6adf34086f3b42ef2da",
    "signature": "0x7db15ae670c24a88eb3b4bf81f9ec10a5fe908a0b37cebed809c1816d60b1eb62d7d9417754b557aff6de6d07a2e6372d946df4976de40be250166c7b7f64f811b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}