{
"manageEntity": {
"action": "Save",
"entityId": "44191835",
"entityType": "Track",
"nonce": "0xf8df12f06b7af61d3c9a8ddf2dd2e6f26b6b7e091483bffcafa32d143132c14c",
"signature": "0x87a97b67c0f3fe9ad02774317334cdb11df1ce1d95bd1ca719f57db2aa5aaba7435a59df3928708a40b47e479aac35c8017dec596d10d066de1f18f6b67bb2821c",
"signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
"userId": "683609933"
}
}