UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RN5jtDfWdAWr8gfVYaGTSi21QyPZ2amFtvfANonSuCY=' 
WHERE 
  key_id = '277ad1f3b384197d110be779e67283a179ecfaf05536d9027a982e1faf534544' 
  AND (
    token = 'RN5jtDfWdAWr8gfVYaGTSi21QyPZ2amFtvfANonSuCY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )