Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '41db131f787556d8bf96f34fff67efacd601493610540b37fc33167d346ac1d4' 
  AND token = 'skquSFJHqmdNmP3lgIlriGt1yugpfb3xvW4gwxhwa18=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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