UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6uc/fM19nifWRbDPdUFfVTeRuj4WxNve+u+4085RPoI=' 
WHERE 
  key_id = '51926519285e5008bee4048df65ce2cd977b5830f7badb7b1f56414c710fab0c' 
  AND (
    token = '6uc/fM19nifWRbDPdUFfVTeRuj4WxNve+u+4085RPoI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )