{
  "manageEntity": {
    "action": "Update",
    "entityId": "113836377",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5f0272f72903a5a9c798e4939996b5ab827e0ceb4e2b6e7b3f1496b3f2f292b0",
    "signature": "0xf9e9bc75b4f9f418a924bb882263153f31cf2f0af3b5a71ae4ce2689eedcd22a744a80b6aeec5bfba82f2afe5b6ac0ed27bf324343e3b4a01b6a264fd0f25c551b",
    "signer": "0x304d1c96E029091106AEf01B6d645042b0Ca8CB2",
    "userId": "113836377"
  }
}