{
  "manageEntity": {
    "action": "Update",
    "entityId": "890617956",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x04e864624bd80869ba3e2c130bf5c31736a4866b0df13c501c1c85c8aeb4b458",
    "signature": "0x2d9431e9998d850537503b68aa787cc7609e8762f3664b7aebf4ed9d527d2cb7512216a875d3f531999095537f7bb9ad05a9a8c951da3afe13806dd73e85885a1b",
    "signer": "0x6514Bf9E4fe1ff68cC2CbAB5C7494a2bedd3816B",
    "userId": "890617956"
  }
}