UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6/DV37D2+1Ioztq7pbLKv4Ay2l7KvAtAYkjyCyDPPA4=' 
WHERE 
  key_id = 'e978e245c8e8fad483acff75d3796880ec8cc21399423822854ec7c635fbf7e3' 
  AND (
    token = '6/DV37D2+1Ioztq7pbLKv4Ay2l7KvAtAYkjyCyDPPA4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )