UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dmz5fhK68OdAL2z/RHALxxU5D8hwVQNpV20PFikggtE=' 
WHERE 
  key_id = '8d9f3d30b219dba61c945469018bc0354e3c897c758724af20673be62700c417' 
  AND (
    token = 'dmz5fhK68OdAL2z/RHALxxU5D8hwVQNpV20PFikggtE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00019