{
  "manageEntity": {
    "action": "Save",
    "entityId": "26076830",
    "entityType": "Track",
    "nonce": "0x04e737dc17e4691be75330fe6fc073c073e3949a7d972a217c76a035254c6efb",
    "signature": "0x7231c0e96424745ffcedb06809417bd426390775416970e15d12cbbe2cb1acce195ac1a797070b7d7689440182e88f78f074a503781c5c94113a2b4f7035ee7d1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}