UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'E3MeoEy9sVPOR6ztFG1xi7+zoHZVCmePZKF5GFgkWgc=' 
WHERE 
  key_id = 'fe4d3b9dc1e6f16c48e23eb875ee8bcced2160704079da453d7d716574e73d7f' 
  AND (
    token = 'E3MeoEy9sVPOR6ztFG1xi7+zoHZVCmePZKF5GFgkWgc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )