Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '45297baad3333d6f51000c35494e784c20aa5468f318c27fc1212218b595f6ed' 
  AND token = 'Z+0nypzzk7+2QyiUYn4XPN5/zJywAa3N4FiJTJAs+4o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00075

JSON explain

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