{
"manageEntity": {
"action": "Save",
"entityId": "2094608640",
"entityType": "Track",
"nonce": "1792290716082903249",
"signature": "0xf843dfc75b8715184f3249bf6c1351bbac2dcee84172d2cf605e52c34288d8ca336a76bdf5821b1d57602de30274d3a0dd88722d898a8eb3c97e78893a2c9a2e1b",
"signer": "0xE9e5656ce6F7Fe41FDbCA982901407eB55765cD3",
"userId": "670307808"
}
}