UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zfQemmbk3CoqL6pUEltFeKbriyuzgyjSgr/E2H/bYWc=' 
WHERE 
  key_id = '5b3e912fcc74a5fbdb516ac1203e8e61c3cc056e4476c5cb0a979ce4aad4f820' 
  AND (
    token = 'zfQemmbk3CoqL6pUEltFeKbriyuzgyjSgr/E2H/bYWc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )