UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4u//nqRynYo/ealFvnBUGS2zMhTaSrb50QedlMYOyDY=' 
WHERE 
  key_id = '527495823471ede068137d2785b695f08cbd83fc96ee487ca270dd9f553aaf59' 
  AND (
    token = '4u//nqRynYo/ealFvnBUGS2zMhTaSrb50QedlMYOyDY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )