{
  "manageEntity": {
    "action": "Update",
    "entityId": "416697656",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4dbcf43240f3ec13fd3bd0e8a4f4395ee3a2dae83d1778b1a0a5763c488bb954",
    "signature": "0x4ba4515b28182d885d4daba03501916bd000f99c23a0d8a8a788dd8891fbe3a35ecf61a04f87b0a50ecde0fc1638fd20c8fa15e8fbe785aa310368cfec48cbaf1c",
    "signer": "0xd9c53074afbE0A31ECF8AAb5d899a8799f6bbFc3",
    "userId": "416697656"
  }
}