UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MDmK2EejCynFSPCJySFlGwXQzgj/rA8P8G1U7WFN9bg=' 
WHERE 
  key_id = '50fafe6b2640e2df47f7d6042b31deee1c03a602d22bccb505e193c54ec31db2' 
  AND (
    token = 'MDmK2EejCynFSPCJySFlGwXQzgj/rA8P8G1U7WFN9bg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )