{
  "manageEntity": {
    "action": "Update",
    "entityId": "545537105",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x08f0c9632d9417a0f1d5272a618de43e1a2ffb9d521061aa5f2a8c6a5327a5ae",
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    "signer": "0xB4a54F9B2a7959bD50C623E17c29991fa049790a",
    "userId": "545537105"
  }
}