UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dn+HWzKCoTf7SkSDTQlWwZFqXJuLvAOHcVGuMv//RTg=' 
WHERE 
  key_id = '29268000b268e1c747a9e4a93e6bf540539ea4da0853bc986498453eb74e92e6' 
  AND (
    token = 'dn+HWzKCoTf7SkSDTQlWwZFqXJuLvAOHcVGuMv//RTg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )