{
  "manageEntity": {
    "action": "Update",
    "entityId": "812066720",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9dfddfbe5f521fe2b6691c47a482365d663dab2d3f76e37b16229d25f4e513c7",
    "signature": "0xfa901115ab720a2f37a55e599ab2a0fa8be1f32a61a8e8965babd7f1502eb5964e41dbc536e00062d1d764b23544c98325fe46f6f0a494ceb07c5cb20306fa281c",
    "signer": "0x6524Ae2fF85fFD135132d60c159b8679bb16b6E9",
    "userId": "812066720"
  }
}