Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ae367d2c66b6f3f86140d933dd33faf413ddc5f8aaa01792ad4bfe5d5125bbb1' 
  AND token = 'uPzVsxGEVQyj4ny3slm03vP9srpLOb64jj1dOx0lg7I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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