Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60253460eab83c94dd9de30c827befca8244bfb0c7b651081f40ba381b9fdda0' 
  AND token = 'QH+cxGY1PKNYyafKo+065hNpflJU+w0NH5WDElo5eWE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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