UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U6/0fn4OFM8ZZSkrw8yRKGqyugJSOW85YVugFh0YrO0=' 
WHERE 
  key_id = '906b258a282ebd2cf594551bd785d77dbb77b5396aeece47dde21d644042b184' 
  AND (
    token = 'U6/0fn4OFM8ZZSkrw8yRKGqyugJSOW85YVugFh0YrO0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )