{
  "manageEntity": {
    "action": "Save",
    "entityId": "1044059272",
    "entityType": "Track",
    "nonce": "0xf6705037c60178271886ba026607b594720205b20624305c3fb6d5a124685275",
    "signature": "0xaa89a44dd947f0f61353486cca47643a07faf238665b1d47ca375a433a65f66e2588f4c5b27e32af4efd5f77524ffdc763cde7732c33f0dbc3664890605e2f7f1b",
    "signer": "0x5F33Fedc0967cc575F9C03Aa567B3a28AC211014",
    "userId": "1044470"
  }
}