{
"manageEntity": {
"action": "Save",
"entityId": "2086518685",
"entityType": "Track",
"nonce": "0x83dd05c988e8261440854dccdcd3d1210e18ecab9ad1b038d69861fcea8563ec",
"signature": "0xd1582243db6e22335e4d7cd59077485ca2a9fada980f49ef6601318af32870a748abc644b2fab7d513b7d5290d6bb1e6d787ab0058b234a9d33c9301365cb8971b",
"signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
"userId": "580720856"
}
}