{
  "manageEntity": {
    "action": "Update",
    "entityId": "127830355",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf4bce56d4c6607b3d0c5ba73486c4f6a858674c740677d11d583aea62b9c8e77",
    "signature": "0x01892bb746eebaeb612e20754a58b7e92bfa3d73c06861e4ebd65e989e2b094412103230e6df2ef0726df5f7af5fff0c164a2654a56a95de957314d34da4f2751c",
    "signer": "0x8630F2521F11563729A6358aD0134847e803C0B9",
    "userId": "127830355"
  }
}