{
  "manageEntity": {
    "action": "Update",
    "entityId": "633494619",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x71c50ddefe981ccaf3385583031c8aa7d2ccdb7edc36bf58ac74a3e9a1eb81f0",
    "signature": "0x3e92fcba29d874be2d0b51e3b711e0ea8581fc1e9f46ceaf7dc14bbd478ce4104a016ddf849cb6869e8f38a2fd583407a5b5e17ecce533703d9ac7ca3f0a42d11c",
    "signer": "0x7B499405130cFEFBBaec9980A9E37BBE42E8589D",
    "userId": "633494619"
  }
}