UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ewQcmdfM/8iz7qrKh1ad46+TsrnTl7XzJe2s4+h9LOY=' 
WHERE 
  key_id = '6f40d3abfd16f4d21f36db8696cafc4b69505669d91a546c53314dc54275d0f9' 
  AND (
    token = 'ewQcmdfM/8iz7qrKh1ad46+TsrnTl7XzJe2s4+h9LOY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )