{
  "manageEntity": {
    "action": "Update",
    "entityId": "163252783",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb1b16842cc1695b4a7ce39fbe5c9fadd83b3bee674701beafd25c3b448dd6faa",
    "signature": "0x41cc97483fd53df4066631f6d77eb760dbf9ad48ed7997242827db9ab861ab183421c55ed9ab738b9a0d25d78ea0c2be98e78c3754536c9c0534f0becacd7f301c",
    "signer": "0xe39b9d0ea534EDe4092525018dA29b2b75014c82",
    "userId": "163252783"
  }
}