UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MRT7q7RvSKyp3NOLocqNLzn5irakXqqMV0ADIx9ZoMY=' 
WHERE 
  key_id = '4e7dd957666794b18ef3518aba752cd486695ad4f21d764e856f0066442572cf' 
  AND (
    token = 'MRT7q7RvSKyp3NOLocqNLzn5irakXqqMV0ADIx9ZoMY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )