UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ztDFqCOxKxtv5kVfCiRe8mspIiynawTZHc09UzUnXdA=' 
WHERE 
  key_id = 'df4a427e5f11721fadd5587262b76a9cc781390101d6f69f3131a9dd84f3ae04' 
  AND (
    token = 'ztDFqCOxKxtv5kVfCiRe8mspIiynawTZHc09UzUnXdA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )