UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kM8PbFnuh0ebiX49RGbreOJhJ8aox9oIMLMD59XnPXo=' 
WHERE 
  key_id = '4268d617dd6ff74ca44b4d057e4c877f19e6c91972364f80988e01bec784e81d' 
  AND (
    token = 'kM8PbFnuh0ebiX49RGbreOJhJ8aox9oIMLMD59XnPXo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )