{
  "manageEntity": {
    "action": "Update",
    "entityId": "625967080",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x81b8f01163d21db26b16be07be89fa95e917bd90de9a130497b3f6f651ff8eb0",
    "signature": "0xda6de465ebf19f3a9db90a07495fb49414b0c43436934ef51b9f5e515281348e19389243fa80611c362ddf126893508e45996bd3798c405a4b6a9d1d4d6315c01b",
    "signer": "0x94251129D45aC8C68B4E84946241994E2AC9B90e",
    "userId": "625967080"
  }
}