UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '0douRhsvpDapBCQXKdvo7qLUUbjq2igHF3G8zliUyAs=' 
WHERE 
  key_id = '794383c75a9376e29f53744501c018a8051554804a353d247f0d71e66037b281' 
  AND (
    token = '0douRhsvpDapBCQXKdvo7qLUUbjq2igHF3G8zliUyAs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )