{
  "manageEntity": {
    "action": "Update",
    "entityId": "953219535",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierai4n5cpmoubcih7xp6fl4qbhzafvw4qgqotxq5wvsenxjnwirsbnq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":2102334422},{\"type\":\"playlist\",\"playlist_id\":747378818}]}}}",
    "nonce": "0x11122f1c14c3d6afcd8de225606b8f660094fd5c75fa51f20a1e4a15a1102d33",
    "signature": "0x034cd7a725349811a89638e46226ca20f7a015b5b41e39748bd980a33120b5f1065a0299893ed2ed2d3fae9407d7eb0a5d61072009cde9b94b9b336f2257a3121b",
    "signer": "0x165ac7dD4D63a6A37cBa24549d0c710442e9b68b",
    "userId": "953219535"
  }
}