{
"manageEntity": {
"action": "Save",
"entityId": "1790364531",
"entityType": "Track",
"nonce": "1792541178937397788",
"signature": "0x3bdfda4c752283be7d384a24333c0ab0957ce2100f1c1da7ef33cb0071a5f51050d794a040a6bfc28b32caf9755180c80fb7b045adfeebfda851913f594caf4c1b",
"signer": "0xE9e5656ce6F7Fe41FDbCA982901407eB55765cD3",
"userId": "670307808"
}
}