Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '08f62a605047c28949ab00ce05e6d0e28a621685a7a8b7f7555ced4f5d621587' 
  AND token = 'Koh87C+kCKjfIORhwAfyPy7OwQS29ss0nf8it3OZEAQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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