{
"manageEntity": {
"action": "Save",
"entityId": "206452156",
"entityType": "Track",
"nonce": "0x7e55efdb51d63dca81a8d5a557fad208d6d57e40dd4693f6623e29a8f742360d",
"signature": "0x104c135690e3c20b21a583cde94c320149e2ffc352448034689d80e767f75ed7363ca6402582cc5831d8174167e33e115fd17c778665397fa2cc6f8e225afba71b",
"signer": "0xaFdEC27229de1023f5322f4Dbf0e874dC548011F",
"userId": "817564020"
}
}