{
"manageEntity": {
"action": "Save",
"entityId": "956448634",
"entityType": "Track",
"nonce": "0x89bcf2af574d3e3423c754058f406785a72a6fc03e68938d20f0bd3b156b15fa",
"signature": "0x25b8712ee5fe27f128c39ae61cc2f11a2e6e1b6d7b5cf3afb8d1d85b45d5a759525c9f6e11d7864b66c511da4cfb98ee2bfe73a7463ff768a28e7ed21b6359fa1c",
"signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
"userId": "714646433"
}
}