UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'jFLF5YWMnZdn6TTdG63zTjrcpI4liwva5SG+NSGWOLg=' 
WHERE 
  key_id = '30e8f865c90032b6cdccc360bc15dde35743805be47883b68b8e0808755fb9e2' 
  AND (
    token = 'jFLF5YWMnZdn6TTdG63zTjrcpI4liwva5SG+NSGWOLg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )