UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ycdXsq8vgIklcmeCu17p2wVR6y+tYx38cv62XS7XyiA=' 
WHERE 
  key_id = '4ab29397cdc63748d8e296469e27370d8497d1bc2cfcebeec5382a602d343e83' 
  AND (
    token = 'ycdXsq8vgIklcmeCu17p2wVR6y+tYx38cv62XS7XyiA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )