{
  "manageEntity": {
    "action": "Update",
    "entityId": "758888312",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf4d27e6f2fe27ff69a518a5088c48bfec9d112313c969eb808baa134c4cea39d",
    "signature": "0xa1d4f0c9ae5e166e76820ec553c92aefb5c587dfc8e1ae595258d913a684941b32446e318184f126c10edaa9acd0ac65f22f3de6456d54d0ec548dac3cf0da051c",
    "signer": "0x0aDBf47013bd675d7C9bA3D46551ffaa12050241",
    "userId": "758888312"
  }
}