UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8E9TDac6qMZ020r/J2x3VcwLtZWCteqZPCopRfePGNY=' 
WHERE 
  key_id = '6be500a8e6e0f3e2b1bd33857afdfe541e83fd822272efb49df16733922a6e9c' 
  AND (
    token = '8E9TDac6qMZ020r/J2x3VcwLtZWCteqZPCopRfePGNY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )