UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pMC75ksCqwJ7c93PgSZT2sRJeoY5QhExQJsmfknjq8w=' 
WHERE 
  key_id = 'b7eb75a1a146cb8c36bd37775602061b3fe9d8c45ca13fcf66a3dc93bedefc51' 
  AND (
    token = 'pMC75ksCqwJ7c93PgSZT2sRJeoY5QhExQJsmfknjq8w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )