{
  "manageEntity": {
    "action": "Update",
    "entityId": "648743045",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierasas2b3zlv4rd3s3mpi3yhtyiols5a4kl4bkeuhqo3sdyzyk3qd2q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1862648089},{\"type\":\"playlist\",\"playlist_id\":535391917},{\"type\":\"playlist\",\"playlist_id\":430864977},{\"type\":\"playlist\",\"playlist_id\":1558585299},{\"type\":\"playlist\",\"playlist_id\":468259292},{\"type\":\"playlist\",\"playlist_id\":1700277240}]}}}",
    "nonce": "0xce6571f87d1e5187372afac45f24d735c7ad0f6f896963bd87dfd8091a3abc10",
    "signature": "0x2bf3e237a8f9419e645b0cc69a6165535852ea3a07a100e7a4c5984f45bdfae75c9e8842596d0f81110c6b5f4018a9cbe42da9640707bf49b4046acd764cbb131c",
    "signer": "0xCaE1ee7dc4DB493ceab857fd89C09fA305C4c5d4",
    "userId": "648743045"
  }
}