{
  "manageEntity": {
    "action": "Update",
    "entityId": "156613390",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3b3657aedb2180acff556983b5ae8ab8e7daed471a7b8292fd9bb029f592247c",
    "signature": "0xff8e8bc0a46a40115b7bb298b478a8de9c38c8619f22da91432fc42d1026dd0269dc803ff55ed7b105c3be4ccc9933ce8d42d84ecd7e674395598334ca88e2ac1c",
    "signer": "0xE5C4ef3FBC711217Fc26eb9e11b62ff07b4171aA",
    "userId": "156613390"
  }
}