{
  "manageEntity": {
    "action": "Update",
    "entityId": "294997126",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xff3a8020d174b1beccd8be09d0eb5a7c66aa2875faf66f10ea654f892479ae83",
    "signature": "0x74f12f8205e2fb09976853f53a66189a68519d908bdf9bf63d46f03f992b509f06c16d99c63ba78e12d4b97cc4f2157c8d84b9eaa5d1419003875fc4eaa7cd4c1c",
    "signer": "0x09315261d00f522a440e8630B6f4b3208feC32c5",
    "userId": "294997126"
  }
}