UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Sx8rvFRI+FX5cvzpYgdc0iJ7czZVfAEJQARK4ISwX+U=' 
WHERE 
  key_id = 'c21ce0f8379215ee3e60cd550ce14d24056646384025f65daafab8f16f68877a' 
  AND (
    token = 'Sx8rvFRI+FX5cvzpYgdc0iJ7czZVfAEJQARK4ISwX+U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )