{
"manageEntity": {
"action": "Save",
"entityId": "2011658369",
"entityType": "Track",
"nonce": "1785777377631361127",
"signature": "0xf52c2bfdad916939da4409d74d2fefcfe5d671a4564c15d75761298e22e3f6850c156497bb6d521e4a937366d52ea9b8cb4efe8c2fbc9a33bc16afd301872ccc1c",
"signer": "0x6620103988B969bE5810F1B5530c1A44Fe6048A1",
"userId": "568518925"
}
}