UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'iURAlhvgFU6ORlDQFkG9Hz8pm4Lc2vKj4t4EiYDR2DA=' 
WHERE 
  key_id = 'af12b26d204d503875c11e297e4e5d95c958304fe93dcf36306ed610bbc69d73' 
  AND (
    token = 'iURAlhvgFU6ORlDQFkG9Hz8pm4Lc2vKj4t4EiYDR2DA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )