UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RvAR16kptDDKhOmxaEOQGGR48Npxvir3ve4iOVD22HA=' 
WHERE 
  key_id = '1fafdf0fb8a945b852f3e06d011887d70f8623f9b146955d493b47d89118c4d3' 
  AND (
    token = 'RvAR16kptDDKhOmxaEOQGGR48Npxvir3ve4iOVD22HA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )