UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r/PEnqJ8XnzIvI0CC9fLsbIpl321VQAQ9HHOpj2DP/I=' 
WHERE 
  key_id = '971b67138dedd2162f2a9624db886482636dd36bff7065471998ec0802e07941' 
  AND (
    token = 'r/PEnqJ8XnzIvI0CC9fLsbIpl321VQAQ9HHOpj2DP/I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )