UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mMkbY/qhXGLkPSG6ml5KaXxzcRVrR8Pr9cqHXNnKpyE=' 
WHERE 
  key_id = '255aa34023a427b5ad5c9d33a6bbcc63c85b9879ee55ac7f39b2586ca7fed009' 
  AND (
    token = 'mMkbY/qhXGLkPSG6ml5KaXxzcRVrR8Pr9cqHXNnKpyE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )