UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nU4EPpcGXOZG5UHKgikJ18RnuKkSLcjSeqgA794/PdE=' 
WHERE 
  key_id = '303e37256832067d07190145e75a1640cc0a2deb32d3df61f340dcc3d0fd13fa' 
  AND (
    token = 'nU4EPpcGXOZG5UHKgikJ18RnuKkSLcjSeqgA794/PdE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )