{
  "manageEntity": {
    "action": "Update",
    "entityId": "477506989",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xde9d04d424896ccd5f61ff8a161a8d61bd1a033f1419f049a45fa72921140d20",
    "signature": "0xc6216d518b23dca554e714b3d65c12dfed4f8190c4003fb38f8b4d4709f6a9e276dac2567be7b34c71f0fe6b5c39d48604ffd24f28848428052ccc36d4863b141c",
    "signer": "0x6edbc4212576b410cE4afDAE094F88703c806703",
    "userId": "477506989"
  }
}