UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nWjNRMTktjuigQ/WZB+3azwqXwgOMwg2eoQONJFumwc=' 
WHERE 
  key_id = 'c4b665044ec94e3752db4084915e71363f9b6121b802690c1451819953ac9a36' 
  AND (
    token = 'nWjNRMTktjuigQ/WZB+3azwqXwgOMwg2eoQONJFumwc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )