UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'G2rEo0xWfjcSdD44Lmn7c//umppR8bNYE37xw4Vp8n0=' 
WHERE 
  key_id = '609901c90aabb514f17018868e9d963a78fd480536a74f3c21f28b6ba2fc4dc8' 
  AND (
    token = 'G2rEo0xWfjcSdD44Lmn7c//umppR8bNYE37xw4Vp8n0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )