{
  "manageEntity": {
    "action": "Save",
    "entityId": "85755171",
    "entityType": "Track",
    "nonce": "0x40a0eaf99117e2d66b253b8081bef48193817a42ffb369f22db1226c01310a75",
    "signature": "0x32a7317983877ab32cf4ab9cc598f366f0a24a559f82154ec9c5c2a7b0406af541370fa9a1189c09f9a4f4a6d6769a06ccfe24439059c4055b623a2b1e7095891b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}