Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b060cedf98333bc2ae19f78322b91fcc078817788f12f94979251c95e5eb76fc' 
  AND token = 'GsafrJf71dJKho1j2ltgH/YoIOvW4K5N1lT2G6DdjZI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}