{
  "manageEntity": {
    "action": "Update",
    "entityId": "345612795",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x11295b25448832f5fbc3e86ab4ac3ca89d395758bda0255a5b5d8e9dd1441219",
    "signature": "0xafa85d7e91f386978e8573c93709cbb354edec109a1c71b00b1d855b18084dbc4def0f5517310156b6a7eda56aece66a43029a8aaf5ab2c595dc1cec61c498501b",
    "signer": "0xA6A22A670AE072B9E536b3f5450c5817bB3Eab81",
    "userId": "345612795"
  }
}