{
"manageEntity": {
"action": "Save",
"entityId": "1762220277",
"entityType": "Track",
"nonce": "0x6995fb5cc1e5f3776bea34eaf468e5d2cec3ee9016fedc2ac3cf7e08530955a5",
"signature": "0x4b123b6fea2cd567bf54c4f8b8a665fa491a44ea284968b69c76a5d17917867f23cb3d5d2921bbfb49e5cc1e35dd5646f1d9548aa06c40b6528a3dd5994f59741b",
"signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
"userId": "580720856"
}
}