UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'V4Em20ca2QH4p9sJf7zJcETAQiVnw826NMORPUWcyiU=' 
WHERE 
  key_id = 'ac93ffd206daf4c8f91fa67d1054396d141def9aaac811c8d9a5f82c2a801784' 
  AND (
    token = 'V4Em20ca2QH4p9sJf7zJcETAQiVnw826NMORPUWcyiU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )