{
  "manageEntity": {
    "action": "Update",
    "entityId": "467916987",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdec43d8440668089ce1b6c5bab74160a1b16dc1e841da3c311c4979d343e1cf0",
    "signature": "0xa78c2865c0639b6c79eafd14df121cc88a65b7ea4797b40a5302bbafc3d062767fc7de2f51ceaba33f260cb8cd221ca01870cfa64e8378f75d08307d2f981f661c",
    "signer": "0xf7aD967731Ff4B50Eb0128205CBD66c9f755C4bB",
    "userId": "467916987"
  }
}