{
  "manageEntity": {
    "action": "Update",
    "entityId": "731704246",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf7ab6955c162ef5fa7d096a31e925c84b50aa4b3815265748697da4e0c006485",
    "signature": "0x726073a9010882e97f72b91ef4b08b3ec4fb4f33c6907e3af3523e6e392320c571f16458b30346c97b0cc6d3a47abdc3092bfb2056a019cd113c7c613667c67e1c",
    "signer": "0xbB4c191a7601C9158D145429F07D794bc7478569",
    "userId": "731704246"
  }
}