UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KEh11YPj5u8A3SymA/dlxHejCyItbDeRCFfH07F/tkY=' 
WHERE 
  key_id = '1d6b0d9ac4ec50e2246eb318786f9198277c9208213eaa96d186de98a9e186a1' 
  AND (
    token = 'KEh11YPj5u8A3SymA/dlxHejCyItbDeRCFfH07F/tkY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )