Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '03805766279ca8cdbeb2a9c5b4658e943500d2659e94d7bbcf447bbec36e0872' 
  AND token = 'tR97u/BakpGvoKlt/6Eah0eLs8nZvgaf+tEJlom40+w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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