UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PdwJhQn2d9qSUVtTULNkNAeygr1imCR7soxqY98OehE=' 
WHERE 
  key_id = '1b856455a8d1b64f5f77d97347652806f3ea435297ce8885cd9bee5d398802fb' 
  AND (
    token = 'PdwJhQn2d9qSUVtTULNkNAeygr1imCR7soxqY98OehE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )