Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '36258e97266c2643cd73843b14843bb5ea424c8ada9aa93afc55126ca31b95b8' 
  AND token = 'ovmuXCvzjjFtyP5hx4VkU7Pb8DHnaOURHOKOT7SB4tY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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