{
"manageEntity": {
"action": "Save",
"entityId": "1015415205",
"entityType": "Track",
"nonce": "0x564523fb72743eb91703cab980687e5099b3077578b3f71f6cce51e26386f5cd",
"signature": "0x7c79f69f3e1ce485413dc6984fd91bc6f8e6d018064927a78a9054d6270fac161d68b8d9912e069ae83100d5d6dbf716bc01ac7e83b42ccabca325390e351a651b",
"signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
"userId": "714646433"
}
}