{
"manageEntity": {
"action": "Save",
"entityId": "1780338948",
"entityType": "Track",
"nonce": "0xf2b9bccc228f43cbd05ecf3319bd7265c7e8c743e5104e53fd699a4446b1176e",
"signature": "0x2bf40b437cfb849b50e2f0b0f8d660d7ed45121db2fd909cc32d36d1d447bc843b505cd6985bca6874241b3cc02828c80b85a481c5a634d5297b7f634ba97a071b",
"signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
"userId": "714646433"
}
}