UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'q/Hb4d2L/8IQaSXtNviBTeKYJ7ZVeENeS/FxwlNfLEE=' 
WHERE 
  key_id = '20a236c02ce546c0d978541c3d58fcaff6fca0cc6d9ae044ebe7fc3e8e0395b8' 
  AND (
    token = 'q/Hb4d2L/8IQaSXtNviBTeKYJ7ZVeENeS/FxwlNfLEE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )