{
  "manageEntity": {
    "action": "Update",
    "entityId": "386394268",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1ac018c8ad759806ab76ced7e12d1b316b4b5dda721f8e9866b706a2a2f16fcb",
    "signature": "0x95039117eec7f413a8e862c34833d383c19a4bb6dbc6a98f8f4333819cd449b17a7b5d762ec134f4eb4e404fb9022232bfe1de1cd9356ba469e38833d741ee851b",
    "signer": "0xA6a5c3bD77f7F79A403d0302C0628c4d0a306Ad9",
    "userId": "386394268"
  }
}