UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'Oun7rPXw0mmaTealzCwxxWFktsnYj9+yFahrWYIj5Pk=' 
WHERE 
  key_id = '3972f1e88b773035a38590cfd9ca49cf2c8684dd4812296f86f81fbcca4d7fb0' 
  AND (
    token = 'Oun7rPXw0mmaTealzCwxxWFktsnYj9+yFahrWYIj5Pk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )