UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SmPdrOfixMGXRW51BjsfPSLOb1si+WD7X8TghUWdYuc=' 
WHERE 
  key_id = '3268811a849651c7f8ab9bcdcb8e82fd798b875fad37d14ea67de9775eb11c5a' 
  AND (
    token = 'SmPdrOfixMGXRW51BjsfPSLOb1si+WD7X8TghUWdYuc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )