UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WmCXf3Kau3lO8ZMs/OO6Ib+AyusvTCALbxbtBzHNvas=' 
WHERE 
  key_id = 'b6e0256f438e6c32d3284e8b24a63b89fa1db78546bac05a55b5eca756bbef31' 
  AND (
    token = 'WmCXf3Kau3lO8ZMs/OO6Ib+AyusvTCALbxbtBzHNvas=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )