{
  "manageEntity": {
    "action": "Update",
    "entityId": "308261833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera4pyl4fdhhpsanbch2vhau7s5jte5lk4g6ibdwxkl4wvu6ndtwhsa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":616769041},{\"type\":\"playlist\",\"playlist_id\":1312755949},{\"type\":\"playlist\",\"playlist_id\":310612173},{\"type\":\"playlist\",\"playlist_id\":1319022494}]}}}",
    "nonce": "0x2c21b01ee7627e6f148f2f4cf3ea5cdae3e2707cef56a07b19d4339c85e13dbe",
    "signature": "0xd30d451ddab8fb9b855b1a55d249b826cf414fb3b911610d56fc184bfe8b596b4f37f383bddc7ecf59a40b6743e5a1b4cb2262d24a6cabb38c9373e55b4dd9661b",
    "signer": "0x4B0a22A25ed0c580309e8a5565722854C6b7873A",
    "userId": "308261833"
  }
}