Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6e34f06495c8bf24a665e810bc4726a8504eb072fd54b393bdbe40bb056a9f06' 
  AND token = 'OjgamrkuRF7JJNyxG2Bk2KX1jut8Fob+WOxr5Xu4jN0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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