{
"manageEntity": {
"action": "Save",
"entityId": "1787023688",
"entityType": "Track",
"nonce": "1792421225561375034",
"signature": "0xf9070b75160e3242e0a9f22825c268389724e7e1bcb8ad66b64ea430c1e1bdb9010d30d14eec8340dfdc2eb1e7746731e18ac401d8a95c90b2a1bda3772156cb1b",
"signer": "0x1007e09532BE90331E035838A9E2E0700bB9741a",
"userId": "329513359"
}
}