{
  "manageEntity": {
    "action": "Save",
    "entityId": "1017534214",
    "entityType": "Track",
    "nonce": "0xe8cafd46a40419ac2985b9db23a9e8836f50753e4dfa1164603cd79044be6aa9",
    "signature": "0x597cde93ca05536240a2dab8cbec3de7fcf19d830bf82e32f9acff99e46ab41b1e131bcc5b024d8e9d010855f6df689fd33474d977de82a1db1dd75f67f6c29a1c",
    "signer": "0x38648cAE6c1E69869B895d522E9Bd0f99400A573",
    "userId": "859952725"
  }
}