UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ObT06YpeAROZSZwg2xCTYsSpdq6T7kZbfR5Po1LibqE=' 
WHERE 
  key_id = '21cf03ec4b958f58c384a384fa434831b431a36cc01c57b0c0c299d0eb851039' 
  AND (
    token = 'ObT06YpeAROZSZwg2xCTYsSpdq6T7kZbfR5Po1LibqE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )