UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BDx3KlZtTk4Rzpd9OA7IWjoaovUfjBO5gGwieWC6aa4=' 
WHERE 
  key_id = '51b04027028236fbe40bdffd172d099eac10b6763de1256e2497e9533c5e89cc' 
  AND (
    token = 'BDx3KlZtTk4Rzpd9OA7IWjoaovUfjBO5gGwieWC6aa4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )