{
  "manageEntity": {
    "action": "Save",
    "entityId": "1793026639",
    "entityType": "Track",
    "nonce": "0x3a8c0c877fb1202e1e7fc0bf5a71162377b78aa995c40f3f8e6f44c31fb83b89",
    "signature": "0x55c6c46c78737aa773b664bebc0eebcb12ca3cb6ec7aa65402ddbf5c4e30ff5b3a13ff6e502dd12bb8779f3deb8f2fd825ac6a920a826124dbfc4f757a67fb421b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}