UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6LlYI1MliZwTRWVnOVZ2qmV85eohs1eM39QaZP/vAjs=' 
WHERE 
  key_id = 'c429c91eb72847d70eeeacda988707ee9a7f181c373d5895c30ec19048257507' 
  AND (
    token = '6LlYI1MliZwTRWVnOVZ2qmV85eohs1eM39QaZP/vAjs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )