UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rGTT8fWL5I/fVVLQcOYTyqGXxkcQcG87wNSdZPjCen0=' 
WHERE 
  key_id = '520e67fb4901daba34c0705f0f9fa955bc23501041afc29259e3acef4877337f' 
  AND (
    token = 'rGTT8fWL5I/fVVLQcOYTyqGXxkcQcG87wNSdZPjCen0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )