{
  "manageEntity": {
    "action": "Save",
    "entityId": "1767653012",
    "entityType": "Track",
    "nonce": "0xad000ef09ac4d4f8c1db00929d68226618d0c4c61d4abd8af542bdf38cb1a78e",
    "signature": "0x5a43f83daf2e0510176f2504b706429640a0795bdb512528caa9d1354d5373685165c08533ac7c512fce509656286b6f8f6245fa52b1db808bf6bea061ed4fb21b",
    "signer": "0xE6a2533061175ED4c7f073A7BE3dc4189A4DE47E",
    "userId": "427249190"
  }
}