{
  "manageEntity": {
    "action": "Update",
    "entityId": "224019652",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xca217c34b94f5c112d22eeea9e6f30c554efc0821c0c248c4e06bb43b11ec877",
    "signature": "0x34c6bb885dcbe688de61d1c5e39e266b45bd3ac4b3808125f44078cfc9a1e3bd691631372d550a9446d6d9bcaeeb3568d2fb123bb4931a1f12873ebdecbdfa161b",
    "signer": "0x7964a5eF7E9a780013d3886B40ca04443D69588D",
    "userId": "224019652"
  }
}