Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4afd6de2b446dfbf76148e6d1bf67ec49a2d64020d049630a422fdd4215fe973' 
  AND token = 'Prb6WeiKTth4lLw8OA7rvP04jY4SLUssBVY0EgKXyXY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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