UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ln8H3Yt5y8gvDWRdmbbP0YZxxSU0V+Eub+wO406Ncu0=' 
WHERE 
  key_id = 'efc61a6bd0515196e3fe4559d640bbe8435946e7fd5a27c46b3aaa1bb47aad4f' 
  AND (
    token = 'ln8H3Yt5y8gvDWRdmbbP0YZxxSU0V+Eub+wO406Ncu0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )