UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'jePrjaS6lWkjaju7p4NBwzDDdY2e+2taY4eUmIuBh0M=' 
WHERE 
  key_id = '851b02f0d1afc27ccb75dac49c92e8902d77dff35ce38dc9cb4453201694c652' 
  AND (
    token = 'jePrjaS6lWkjaju7p4NBwzDDdY2e+2taY4eUmIuBh0M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )