{
  "manageEntity": {
    "action": "Update",
    "entityId": "610994430",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2d7b837e94f6fca1df34f352fcd3e8a5f4347a2be392189f0f4d72b5dfe7e740",
    "signature": "0xe380976aab2ed97d43250f515e7939c64874257363c140f5608495575499db5325112674be6d7798049f922288482b1dc87e79f524f76ffdcb7c6ebdad80a7b81c",
    "signer": "0x9Ab46FAFcfde52526834f886709F9F9B2342F32d",
    "userId": "610994430"
  }
}