UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'O7FfQRMhD6NgikUw19oeFY5sXaiMGy1P4pnVnBIM8G8=' 
WHERE 
  key_id = '2ad8f3b384452556c868b72039f717094962aae0cae07a44aabab69de4838aa2' 
  AND (
    token = 'O7FfQRMhD6NgikUw19oeFY5sXaiMGy1P4pnVnBIM8G8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )