UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'YtWKeGGUVnJJuuMEwA1SuP15UjRRXI0hDEDJPFX417o=' 
WHERE 
  key_id = '5669b223e6e9794ec615b1590d288cd12a73163de5442aa15729fce77a3befd2' 
  AND (
    token = 'YtWKeGGUVnJJuuMEwA1SuP15UjRRXI0hDEDJPFX417o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )