{
"manageEntity": {
"action": "Save",
"entityId": "714726754",
"entityType": "Track",
"nonce": "1792437321262495252",
"signature": "0xb72af5198b4427bbc1dd7a1671e0ea8b05ef10b3801358c91b60044aa925abb33968141d015f05890a94dc96fb3f9f6059f4bc69298550b187454a66ad3610a11b",
"signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
"userId": "881446128"
}
}