{
"manageEntity": {
"action": "Save",
"entityId": "314219485",
"entityType": "Track",
"nonce": "1792675547252069100",
"signature": "0xf4761de0cf19f84ddfc0643eec3f96c98fe1b989fda2a265f452554e044e533e1584abbeb73c73a6fac8b1b8cf1364504130ea4263a937a997ff3c9f569d89671b",
"signer": "0x9B241b1a6A99d662AE67D328e091Fc94faF23fdc",
"userId": "881446128"
}
}