UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a2eW2jtdZkt4ryUSLgJxqR8tqyg5dzDtJXTu4UAIfaM=' 
WHERE 
  key_id = '3a56b2040058e1cfb16c3f47b92169880b57c9cafa91d06ff07c1516b714a408' 
  AND (
    token = 'a2eW2jtdZkt4ryUSLgJxqR8tqyg5dzDtJXTu4UAIfaM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )