UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PExyDUh0W8fq5xNCrTPsjdcClwJvfcmPAnTlIHl+wYk=' 
WHERE 
  key_id = '79a47aa2dd4c42999f851e64439460855f96d80ead39e49e81a586547a205476' 
  AND (
    token = 'PExyDUh0W8fq5xNCrTPsjdcClwJvfcmPAnTlIHl+wYk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )