UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u6CtIJBoU7l3aZ2KxgxH5dkXIvM/EBp3KqRhsU4jlqk=' 
WHERE 
  key_id = '6cad7f7729c191123034174210df941478d61a2589b40293fcd3e00b8ed61998' 
  AND (
    token = 'u6CtIJBoU7l3aZ2KxgxH5dkXIvM/EBp3KqRhsU4jlqk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )