UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u2a9Cyv7gIWdXf50qnQjS7LdA5qAAv2sjhm6bmjl9yM=' 
WHERE 
  key_id = '837274621c8ff69bd759fa01c6ebee33d33efe536f2ffed66bf66102b26867b2' 
  AND (
    token = 'u2a9Cyv7gIWdXf50qnQjS7LdA5qAAv2sjhm6bmjl9yM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )