UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'm2qr1Jnx5jh7rdZZ7zTM9BuISUSuHtK/FS0AuTk93fc=' 
WHERE 
  key_id = 'fa359f73c56a6bbbc0a3798b229afa779fd4c763588e8b2fe0f91dd4bbe6ecd7' 
  AND (
    token = 'm2qr1Jnx5jh7rdZZ7zTM9BuISUSuHtK/FS0AuTk93fc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )