UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DG4mG81ru8xZZ6wEAz3Spr/reIyJhdNDxO4kQncjA78=' 
WHERE 
  key_id = '18a360d81b17b109b529f03e93d14e95d49b2d619fed0d6b8091981ef0b84dba' 
  AND (
    token = 'DG4mG81ru8xZZ6wEAz3Spr/reIyJhdNDxO4kQncjA78=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )