{
"manageEntity": {
"action": "Save",
"entityId": "518766712",
"entityType": "Track",
"nonce": "0x294118f90258c28c01ad479182b14e23cf52f4ce050574825ecd78e42896de04",
"signature": "0xd433aca094e8653f456fae4b90a4e0c21fc78cce04912a9b087134e9023d01306e40031e334e435e60149aa8dab7233270b28747dca8e188fd0a716873823a121b",
"signer": "0x32987cB5D8fDeFeb44447584950469BfeC9Cd41f",
"userId": "63084"
}
}