UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Rk8jcYcln6Lt7nPaGe3APYCmI97L1FMPCqwMDyGAG/Q=' 
WHERE 
  key_id = '52979c24e01c36652a6c9e21fd39becd48202b98d6916679269bc2dc6d7c5cdd' 
  AND (
    token = 'Rk8jcYcln6Lt7nPaGe3APYCmI97L1FMPCqwMDyGAG/Q=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )