UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KSxKBL0M6yfsEAaWEKAjbn6rE9lzZn4JYRFSjQqv/BM=' 
WHERE 
  key_id = 'c5a9e7b337a9d9031d363d86560241ec577baf498f1ca4e0a96e949a8d5281e7' 
  AND (
    token = 'KSxKBL0M6yfsEAaWEKAjbn6rE9lzZn4JYRFSjQqv/BM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )