{
  "manageEntity": {
    "action": "Update",
    "entityId": "230468738",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb4607aebe1649ecce24bf1959bf54205a87f7d70beead38ba025f4a05ce4b31a",
    "signature": "0xa3024a28f087382770afeede02940269ef1c4a5a0234984774e471058e2eeb181f4f0c61db744e14a027d218cdd92605887b4f01d3e284a6613e3d23930a500b1b",
    "signer": "0xf873847Ae201f1bB538C23706D84cb28d5ec8B89",
    "userId": "230468738"
  }
}