Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96fa35147766cbce585610bb3fc65856b5c314213623c6243148ba1de3b0f7e2' 
  AND token = 'aT2IjsU9HtUiGGg9rI3lJGC9IOYCM3b/KV8KZGdSrsI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00051

JSON explain

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