UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GU6MU2ixk29RYd96f66VVovek9jODTZlyiVBRe+oovo=' 
WHERE 
  key_id = 'ba74744a4f77d1795c348772af6b6ab767353709700c1a30667041131d9695af' 
  AND (
    token = 'GU6MU2ixk29RYd96f66VVovek9jODTZlyiVBRe+oovo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )