{
"manageEntity": {
"action": "Save",
"entityId": "1482975951",
"entityType": "Track",
"nonce": "0x09334a88ccb02593f39a31310f2c04a1bcf93595acb95d144da495b2215adce8",
"signature": "0xcbb4873783bce26d0f6c9e8716d0e7f54386739628eb683de2fed6720932db9b6d45ab077ed3207d0ca2af5e510ea1d49ec784506af29930a0b9c4b8dadffbf51c",
"signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
"userId": "580720856"
}
}