Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '00d0e3a60cc651135d362cc15e41cef07c562b200c4c37e7741b27d95511922d' 
  AND token = 'W0XvNWbJy0Z7k2HCEY8VkWIY3VkoCgcN4mU9nYPiKZg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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