{
  "manageEntity": {
    "action": "Update",
    "entityId": "744238923",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x623ab818d9d726256ca93533b4fa1feeda6f023de5bd920d21d2b80b40e5e25d",
    "signature": "0xceb562f25ae609ba4c4b98250cc81a9aa112d7c608193bb9ab2f6c43d1bed16c1aff731d32d8a834cf2a798416fb258bb14fccb6285c35b14b124c4b62e877a71b",
    "signer": "0x79ccb48Cd9904479BB0E6049F3B3f83892bB049f",
    "userId": "744238923"
  }
}