{
  "manageEntity": {
    "action": "Update",
    "entityId": "256101298",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1c629c182753bf2258385d099ce6058ee85f6d3e0777e4c87dc3778183e3edeb",
    "signature": "0x53c8caa7f9aa1f45a3235a8e73b3ab4524276fcc2b8955bdf1397cfea556de68602176fce3fec7b381b86d081e4cd2e855f61553818c0edc786898cb12477ef51b",
    "signer": "0x8a8d1f785BEE5d1AFf57c8A2fb985f723d6BC856",
    "userId": "256101298"
  }
}