UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NoWH/r3flkRVZjcOnBFgzw6F75s+SSPvRMu4nL3CSeM=' 
WHERE 
  key_id = '793a5fab4b48c928f7f55cc943f648a45c51fa41a7faff7166ba1b0cf37be2f5' 
  AND (
    token = 'NoWH/r3flkRVZjcOnBFgzw6F75s+SSPvRMu4nL3CSeM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )