UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'iBkJzfU+622Kb/+2Eu+hWITNI+AWZb6sJOdYDN+wBM0=' 
WHERE 
  key_id = '968fb450f4649916dcc93fc10359895204c4b53af914c2b6179c35a544e62980' 
  AND (
    token = 'iBkJzfU+622Kb/+2Eu+hWITNI+AWZb6sJOdYDN+wBM0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )