UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'N5cOkcKDWp8bs//YcGKKn0ombZrEIMPjBNddmTZbG6Q=' 
WHERE 
  key_id = 'b18122f30e4e82c1f3a55ee6e8929ecd573fa8be3ed63b7c295c2b4256929926' 
  AND (
    token = 'N5cOkcKDWp8bs//YcGKKn0ombZrEIMPjBNddmTZbG6Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )