{
  "manageEntity": {
    "action": "Update",
    "entityId": "480175650",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x63418fc744887a1993ef47e9a3bde6b7a05da47994837e963c0b4f440cbd9c24",
    "signature": "0xdf6ea9a5488fa0ac13ba0ac0c3455f9815bc71c29e214cc07ccc00d7652436377fcd2270a876ee0383629d6e3a166b6d664d2bad4c5216a26e50d7f8d4830a5a1b",
    "signer": "0x3C0b787AF69568597dFe72D6ECdC516b6aED70de",
    "userId": "480175650"
  }
}