{
  "manageEntity": {
    "action": "Update",
    "entityId": "911290367",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xde779c1760828a0d33d231b8d2f5e4c121d2e8002e726d3d751d016616cb6372",
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    "signer": "0x1aB2bD795ec75a0eb2F79e8cE076cf1D3F7f7Acc",
    "userId": "911290367"
  }
}