{
"manageEntity": {
"action": "Save",
"entityId": "1159753531",
"entityType": "Track",
"nonce": "0x593b9d38bd02aea48a7699db3c635b13f7a9d1f954e25b190d368382c151e67c",
"signature": "0x9c3cb3000e0bedaf913258fd12223b44ea14f80f86b34866e80bf925ea9cff2d319eef03d0e26dca6501193d51626b2d7f399310c1fc8d3b2a96072f3d1c8d311c",
"signer": "0x98BB774C573e105ebDF61e814dC928E65BDd6c47",
"userId": "457973935"
}
}