{
"manageEntity": {
"action": "Save",
"entityId": "1174761337",
"entityType": "Track",
"nonce": "1792393727752484589",
"signature": "0x80beed1db1abc6d0f9f2c63a71b5eb5f53e38fbdd4bb1977a17f0cb0600d6ead7fdd1e247260fbdfbf2ad2b5c129c8a86a1777d09a2f5176ae8fe3110a8056fc1c",
"signer": "0xE9e5656ce6F7Fe41FDbCA982901407eB55765cD3",
"userId": "670307808"
}
}