{
  "manageEntity": {
    "action": "Save",
    "entityId": "2110855344",
    "entityType": "Track",
    "nonce": "0xd827993e1e2b9b33006b3fea2b30d2b7dec9c7de93eb47db8a996f50068b91a7",
    "signature": "0x17472e4ca894f64be933dd1247465dfb2b763f2ce7c9021ed5e973fd8b495e6164d77c72579930c3cb567ea9b16a14571fa9bc4368d7b4f9c964268d926c62251c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}