UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KjDU3r+IipzHWoE1ywhqTbV3DyF3qKdSoq1CUm21Ejc=' 
WHERE 
  key_id = '73b601887b38e03549de38d1b3032736a30e92458d895d906c0f9496e95e4789' 
  AND (
    token = 'KjDU3r+IipzHWoE1ywhqTbV3DyF3qKdSoq1CUm21Ejc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )