UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+QKLJFbnIHGgn5npK+TMzZ5C09ddS+Y635r2oaqPL74=' 
WHERE 
  key_id = '255716154b2082b394f436463ca44cff3b2953d758118755345379162525b729' 
  AND (
    token = '+QKLJFbnIHGgn5npK+TMzZ5C09ddS+Y635r2oaqPL74=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )