UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rr91x/kuq8AOMALBChUlSg6kRm0IfGPsKMY7w8mkwJg=' 
WHERE 
  key_id = '91a687e36c135a7d1b833a18eff8f4cf12f78849dbe2e824f7021ea5bfed74b6' 
  AND (
    token = 'rr91x/kuq8AOMALBChUlSg6kRm0IfGPsKMY7w8mkwJg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )