{
"manageEntity": {
"action": "Save",
"entityId": "1928975016",
"entityType": "Track",
"nonce": "1792407438759511354",
"signature": "0x0ec1d081ad59860bedbc3c9695f19daabf31fe4deb62d22638cf84ebe841e63644a4eb11ebed788402074379f71e462e4ccb84bcb852877496c024da5e181c2a1c",
"signer": "0xE9e5656ce6F7Fe41FDbCA982901407eB55765cD3",
"userId": "670307808"
}
}