{"mensaje":"Este endpoint requiere POST con JSON, ej: {\"de\":\"0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf\",\"a\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\"datos\":\"0x18160ddd\",\"red\":\"base\"}. Precio: $0.003 USDC (Solana o Base)."}