{
"manageEntity": {
"action": "Save",
"entityId": "2014683868",
"entityType": "Track",
"nonce": "0x84696953ed70a79999950555cd9dcfc517ad45475518ab82230de0da222c28d4",
"signature": "0x19da2596e8f11920569507479535d82c619d8fa526c314049678393f911bb8a92d6d71da17f3ec1b24f9d03fbbdc89863dfc0d0b151c6164af6b54ce858cfb8e1c",
"signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
"userId": "714646433"
}
}