UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6rz5RgHrrEZMCa1i6e9VuuJvog/9dtmVg8s4PFjull4=' 
WHERE 
  key_id = '8a433d0e96b5bbaf6e50e4fee3ee8580fc9876d8986649194eaaf89b82e7863a' 
  AND (
    token = '6rz5RgHrrEZMCa1i6e9VuuJvog/9dtmVg8s4PFjull4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )