UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nxfUDGbtCnLMBotcwPt+H2IY1jbvxU2Nn7RKqA/8DMw=' 
WHERE 
  key_id = '7f8f5c5dfba929470b1d9c6874ae232d5c9c23dd94373b36eb5dd72b33b6b88d' 
  AND (
    token = 'nxfUDGbtCnLMBotcwPt+H2IY1jbvxU2Nn7RKqA/8DMw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )