{
  "manageEntity": {
    "action": "Save",
    "entityId": "1695379416",
    "entityType": "Track",
    "nonce": "0x3c77c1efbc9833bd1e7742e3bf52a37aab28adffd99c7172dbb7d3b4a41f6a8e",
    "signature": "0xcd009c7cf5526937793c04689f036c5a9db91d40ea9443f8bd20e08b88f3a8a349fc4c3f1e9c357be438e258d18ef3b90b409e0110d215ec4e8633f4e45412db1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}