{
  "manageEntity": {
    "action": "Update",
    "entityId": "282242162",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa0494718f75373783b5e5ed473a271525c6750c77862655d738e025074b30d46",
    "signature": "0x7c30f270e7167b6c27ea5c092f620156c9db5f5dff1784b4a53316d8af19986f43812e962d3a239e400acf8f3f6ef0c6022ad33329c1496c4c62c1177c49c7a21b",
    "signer": "0x50D045bfD0f16c9717545Bc037b61Be044c75B96",
    "userId": "282242162"
  }
}