{
  "manageEntity": {
    "action": "Update",
    "entityId": "756315354",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf49bdee7af4d4d37e65f0c6ef0cd2105b078378c742696ca5549298b0fea9c94",
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    "signer": "0xc80006DE9A3D7a183683d544Dc02B6b4A7693840",
    "userId": "756315354"
  }
}