UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'qunlQB3n0ROzljZZylVNg2xxS9fDTT+GYcudLWf3+U4=' 
WHERE 
  key_id = '20f6435bf7c19e92905da5e90b32e16e9846d57814ba4bf837ff2f5cb0363f95' 
  AND (
    token = 'qunlQB3n0ROzljZZylVNg2xxS9fDTT+GYcudLWf3+U4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )