{
"manageEntity": {
"action": "Save",
"entityId": "907647206",
"entityType": "Track",
"nonce": "1792507924522039174",
"signature": "0x661a71574c788ac633f0bd1cc94cca9f67e8f07d95c8350fd1ddc235d2ffcb462825ba0d3b82e6fab7a38ca271a564924cbd72ee0fb93ff4521373812b46ebf11b",
"signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
"userId": "881446128"
}
}