{
  "manageEntity": {
    "action": "Update",
    "entityId": "757790493",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
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    "signer": "0xB7817dac39c5e521717546e27C95A1398B5A8e20",
    "userId": "757790493"
  }
}