{
  "manageEntity": {
    "action": "Update",
    "entityId": "776013071",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7a73a9b6ba69495ef5ce05dc14d7c3f287cf0dd89bf4916bec686be326b7262d",
    "signature": "0x5d55db56ba4b4f538d8724578cb1216d03f940a7f605f285bdf62204813c7d7d7b8eccb60f043c7a11ab7f201705b829dc811b29d66d334419f29dbb4bfee9b01b",
    "signer": "0x97BBA85E2FC209683375cc96C407927a546b82Cb",
    "userId": "776013071"
  }
}