{
  "manageEntity": {
    "action": "Update",
    "entityId": "621598376",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
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    "signer": "0xc2009c7F2795E038182C90651E17DC5Bfa03D005",
    "userId": "621598376"
  }
}