{
"manageEntity": {
"action": "Save",
"entityId": "1420617684",
"entityType": "Track",
"nonce": "0xad1abcaa5735eeed83c65909bb35c8d72f4db23bbe748a7472b1b4f4affb6995",
"signature": "0x053c162e8bb6efa782ed7f5474962ef240f2d9bfa58bfebcbea6dad5d7645bad03e499106d3d97596cacf760bed8ad43f2d1d91663377510cd50824bf8e353531b",
"signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
"userId": "854614078"
}
}