{
"manageEntity": {
"action": "Save",
"entityId": "30282704",
"entityType": "Track",
"nonce": "0x9e49378e6c3cbd4fbc8f37d31f2cc925043fe9cf21b108c05493ad38372e947f",
"signature": "0x1f2811063a6584344a329e9374939b7234be640994373124b3cf375483a77d6029814472377829b15cf9e1946f3db6dc3eddb8460abe4ea64d450ceef749a1951c",
"signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
"userId": "890889753"
}
}