{
  "manageEntity": {
    "action": "Update",
    "entityId": "440765480",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x86d74957091adf2c29a9ee6ebeb45e5a857fd350c2eb056de2bea565ffcd9d91",
    "signature": "0x48ae1da830cf214de66e5647723b921c331d3d811cb3a32289486637a0b750607e014a9b87db6aae3894f3e191829862ed155c5f1258e73a1324cdcf3e4c31e01c",
    "signer": "0x83e386fdA0345C20bbbd1Af26b674A718d0714Bb",
    "userId": "440765480"
  }
}