Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '096bd6c97ebd37a16681fd20ff645748a9174e67be553f11d6545050c93c692d' 
  AND token = '8Q2yih7wUrf6IlU4/ogZcryfpZc6FmbR7a4rPs2k/iY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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