{
"manageEntity": {
"action": "Save",
"entityId": "275978032",
"entityType": "Track",
"nonce": "0xc07b253cd343f14e739313bc254f37cd565772dfb9782de64e79094534acc3cd",
"signature": "0xa9f7a17e014679517c64ef4bbeb4018cecd836aa39a3787d3f6f287cffa679e77852c3c60f3457a07240eb138097e6d995caf86d22d8f90054a98328cd64dc0d1c",
"signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
"userId": "580720856"
}
}