{
  "manageEntity": {
    "action": "Update",
    "entityId": "275350856",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x67d277c4ec6495b76f2dd2bde388b0af4c6491daf71d127d8e2d69c91948216a",
    "signature": "0x3c086b432af978672eac0c1970b982f6867c982572aa5972cb88afb28c05100f123a96b62febc44d157e0858ef8566acb0e49809b9c66ee6cb1cd50a41b143051b",
    "signer": "0x99cc71DF4121e0a865e7D094866224A204ae2b44",
    "userId": "275350856"
  }
}