{
"manageEntity": {
"action": "Save",
"entityId": "1458078217",
"entityType": "Track",
"nonce": "0x4083c2e6db4894138712cfffab68368e6f96891557fdb9522f0b3a72392a5b8e",
"signature": "0x0126362feae477ed0c6a4ece0dd4396707b7b318586dee7d08c76f253fa3c17525a61701dce1256dbb119c20207276c5129e8c5b7e51a21abc2d7acef16dfff91b",
"signer": "0x3872417aC9CCdc743F396f6d7A6872e91dB934d1",
"userId": "701379462"
}
}