UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'q3K5KVCKXdTkNF4iAXoZ7ReyDm6pEr9a5woqOic+nho=' 
WHERE 
  key_id = '4d9c50482a54b94190dcc207fce98347c9aab5ecf35946856ea1e2e5b9fa3ce5' 
  AND (
    token = 'q3K5KVCKXdTkNF4iAXoZ7ReyDm6pEr9a5woqOic+nho=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )