{
"manageEntity": {
"action": "Save",
"entityId": "505309182",
"entityType": "Track",
"nonce": "0x24990ba0a54a95b98e4f55c5cfb4bb2639a030bf1d0f93f977f616be08d23c3f",
"signature": "0x15dce3ba66c70dfa45298aa857bc819f2738276d3bc2a359a7d8109c768a17574e3676d83cd65857586b6eee20d48b0ca9b35518c89fab46dc91a16d9941a7e21b",
"signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
"userId": "571117272"
}
}