Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5d574d66c8fff1ba7f84f673cf4295a96ba17ed00ea22e5a26b6ce3780100f5c' 
  AND token = 'CbmHekYJLNMlv7ppDcfp9eAUXBSbgxf5yxZYiBQoN5A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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