UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MC7dzrVGwUTX/Qi/gzrVaUX5PQF6T56k1IRBxKtnILk=' 
WHERE 
  key_id = '871608f78bbc75d6431a317853fd6f0e9d9ea06c6b27a3f16d0527742a99a01e' 
  AND (
    token = 'MC7dzrVGwUTX/Qi/gzrVaUX5PQF6T56k1IRBxKtnILk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )