{
  "manageEntity": {
    "action": "Update",
    "entityId": "224019652",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc4ec6d4d59e5bfbf4122fd20b0f37e77eba335543457e5ab9e3a9f9b37785f53",
    "signature": "0x6a942a55c37a05f4465a9ba2d528576e2e3e5bfe5225e8390fa2d0b730eeaaa14f975f9074ccf813deee7e1bf6377ce0a796fb90c28c621d138b5e1a6e4f814d1b",
    "signer": "0x7964a5eF7E9a780013d3886B40ca04443D69588D",
    "userId": "224019652"
  }
}