{
  "manageEntity": {
    "action": "Update",
    "entityId": "563998093",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9d837da2b64a7aa7f28faec5348444d67a98b4398b415dccfe5ee5723735e1de",
    "signature": "0x43fb945fcb7c5bfaf79cc11b3ad2f72930a455f4f070c3ac7154012fe89b0d0f249a03949a03579807aaf9c0fd0a017ef69965357e51c998b9a5a41e5054ed401b",
    "signer": "0xc11D28404f39623f2A0d9D9eC6D9E5e4C8e06fEb",
    "userId": "563998093"
  }
}