UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R/PxTrdbgn6lgPU7oXt8i6D+9ZN9C8JVS3S1lQErciQ=' 
WHERE 
  key_id = '47555a6a9b0309b7f1bfbd7b4dffd996679bf3f7b10a5b1d744419f69ee1c198' 
  AND (
    token = 'R/PxTrdbgn6lgPU7oXt8i6D+9ZN9C8JVS3S1lQErciQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )