UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'l6unonWXgLra4csa6f3kwjNo3lWH/zls3+BlmJDljws=' 
WHERE 
  key_id = 'ddc2c2957c89e01f252b1afe819f6c29c94fb854508da343b0a426b0b1918100' 
  AND (
    token = 'l6unonWXgLra4csa6f3kwjNo3lWH/zls3+BlmJDljws=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )