UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'c372eTI2L8qMTVL8j0iTzCW6KtMC5QdV55rYZ1eOFZw=' 
WHERE 
  key_id = '45b76d944f30f99fe3b082433e3e8da487565b3221b1273e3e0459c9ca0c8aa4' 
  AND (
    token = 'c372eTI2L8qMTVL8j0iTzCW6KtMC5QdV55rYZ1eOFZw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00035