UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Mg74tyF+SiSivEDdzomu/3O6foFcXoF8rmnWGFNy+80=' 
WHERE 
  key_id = 'f19e92515f4ccd60fe582740682861b97f70f55cb65290df697445dcf7793326' 
  AND (
    token = 'Mg74tyF+SiSivEDdzomu/3O6foFcXoF8rmnWGFNy+80=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )