Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f9d02034ace8e5e00fb602f6772ad0acd543339bb43848266861ab8e8784f109' 
  AND token = 'iTsIc6R3ozuKBQkDs+rc6QNBGP29jDqUCuaZ8BtMJBI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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