UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EylPDq1pRDe2R6whs5X4hUScTlBCc7RVRLHhRNuHjKY=' 
WHERE 
  key_id = '51ded2395409e30cdde823f623d31acd332cb17fcf85bbfcfe2d26e6fe6af600' 
  AND (
    token = 'EylPDq1pRDe2R6whs5X4hUScTlBCc7RVRLHhRNuHjKY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )