{
  "manageEntity": {
    "action": "Update",
    "entityId": "799696623",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x007be940a5917104dfa9935661920f825e7fab12544a344c2b9aa2e7d2732c10",
    "signature": "0xa2caa842167996cb184fb79293066859139698e30d818de1c749926442ff0a4c70124706457656e6f6c2426afdc181fc0c9e5b9176516ab2477c7ae20e7edc051b",
    "signer": "0x728036F5C82A8DA7e44AE06A00AEa03CDbf2F435",
    "userId": "799696623"
  }
}