UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'e6SDp/adSAn5C44YguMPob2HvcPL3Z9qW5EZe2bCEAc=' 
WHERE 
  key_id = '4868c732ea5c1f7cf83759d34995931a612ad7560f44349c538803f0061a6638' 
  AND (
    token = 'e6SDp/adSAn5C44YguMPob2HvcPL3Z9qW5EZe2bCEAc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )