UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9v4jEaEP+4vvyuY+qaogJKbU2B69NOpcgSavUaacFF4=' 
WHERE 
  key_id = '5a557552dfb7fea84855fda89492e6d97c3123879917f31c62b08422eae6a136' 
  AND (
    token = '9v4jEaEP+4vvyuY+qaogJKbU2B69NOpcgSavUaacFF4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )