{
"manageEntity": {
"action": "Save",
"entityId": "162464",
"entityType": "Track",
"nonce": "0x2e2ede2085e06c553b976ef94ad4c5db1e49f9ed449fdfbc53ee72adbf218558",
"signature": "0xb7b258b75fdf9289dee40bd1bdad7476ce32b82f31d30d7ff42aa4ab5729028a2dcba5704e15e48a982d28cc0cfa2cd813c3f0a549c2a295256c6b6ccd45bc061c",
"signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
"userId": "620307004"
}
}