{
  "manageEntity": {
    "action": "Update",
    "entityId": "177547981",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa470a802792e05f8915505a84a776ffdfd0193809a611706b49f82717721c4db",
    "signature": "0xdb7a61cf10eb206976e0325efba4e3a82bc0389152dd38ab08f3186f392ac0ef66f1ce985aa30f3194910cd581d7b09cfcd9197c2035193c699cb0029d9ce3771c",
    "signer": "0xF725d6Fd7C591fe173E19c2a1084c8aA5a41FC0D",
    "userId": "177547981"
  }
}