UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'f2F5RFnzyYQpAp96t/lImXrQwu8EWZpWrO97V2Rcr40=' 
WHERE 
  key_id = '8cbb8987c3bf7753e7b7af4b267aac5258ca6a01f523928d645451583a5855d6' 
  AND (
    token = 'f2F5RFnzyYQpAp96t/lImXrQwu8EWZpWrO97V2Rcr40=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )