{
  "manageEntity": {
    "action": "Update",
    "entityId": "178992998",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xde167284dce8fa6ab1478ff759df49c668ac296f40a553e867a932abd8d672f0",
    "signature": "0x9674cb150c88d99fc144b6c1e20d48878b7fcf4ffb4fa69461fcf6b799cf90c96fc9f09ec7aa0d1443de48856ff8bfa5a7374b7b700938dde9df60afc91cb7a31c",
    "signer": "0x909f7f459797F8609378A9265C416f6402933800",
    "userId": "178992998"
  }
}