{
"manageEntity": {
"action": "Save",
"entityId": "1933604765",
"entityType": "Track",
"nonce": "1792343605916977752",
"signature": "0x9102ab26bb247be7d6922c931a139b04b7a5564f4a00e62bded97a67a9766c0719fcc870436fcf27824eb711897facd1e76c5c0096cb7911d94268f6f16958441b",
"signer": "0xE9e5656ce6F7Fe41FDbCA982901407eB55765cD3",
"userId": "670307808"
}
}