{
"manageEntity": {
"action": "Save",
"entityId": "523588253",
"entityType": "Track",
"nonce": "0xd6094581449aa739219234b1a986b96682995733fcabdc374f6054b35ae08815",
"signature": "0x3a8da5cd53bec627e293813144dc3ab3742223a00a80d5472246db6508f90bdf12b094a673a267e76665226a6aac459a08ac7db17d433648b2a1393cba92030a1c",
"signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
"userId": "620307004"
}
}