{
  "manageEntity": {
    "action": "Save",
    "entityId": "2034855005",
    "entityType": "Track",
    "nonce": "0xf4722577321e85479bbdb349b3ef67d15179496d18e6d548a59d0620a21bc6be",
    "signature": "0x13dec69a87eb2c21f4c850dd678c931359c3c0a1d5684c66ace241b492531724628c8c0e6b0ebd045c93072b572f5628a39b3568d76357bb88db3b49e8ca97581b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}