UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9QcoqfRDrqVBacEjUeVgkAkxCEmA8pJieo9k7khhfSk=' 
WHERE 
  key_id = '51b75a2b8cdf7f664aefba031dc441ca2bdd0fdbdd8b9be3ffe741af0d714990' 
  AND (
    token = '9QcoqfRDrqVBacEjUeVgkAkxCEmA8pJieo9k7khhfSk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )