{
"manageEntity": {
"action": "Save",
"entityId": "832585888",
"entityType": "Track",
"nonce": "0xfe3cd766e45e001eec2af37cb21998e77cf86ed9e0b747216f59970a65eeec37",
"signature": "0x7cda9acef808b092a1ce764a8142c07e0c212124f75dc5d6233aa695d9993fd405a630b77a0977ad99142910490ec11be260fff7017e8d6efe852b18e42ff5811c",
"signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
"userId": "620307004"
}
}