{
"manageEntity": {
"action": "Save",
"entityId": "1461131092",
"entityType": "Track",
"nonce": "1792327151624888532",
"signature": "0x7c7a2ddc4a4671a0c49848223b797a239174ee997d7b81a6e8bb07731371e0ac5501433567538371d71f20e451e00b293ca1b09a4f57d900a5591d08229a88b51b",
"signer": "0xE9e5656ce6F7Fe41FDbCA982901407eB55765cD3",
"userId": "670307808"
}
}