UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mQFbUW4HYh7bx/y+oY3YXJawJTN4b6Qz2TdeU8h6ftU=' 
WHERE 
  key_id = 'c39d7cda62ae83168ff05a6735b780d09d3b3e55861f820a6114d44dc4b2f874' 
  AND (
    token = 'mQFbUW4HYh7bx/y+oY3YXJawJTN4b6Qz2TdeU8h6ftU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )