{
  "manageEntity": {
    "action": "Update",
    "entityId": "961733959",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xcc94346de5693d70cb0b8992b57d0079c64381622a3d90b61251dae6cbab497f",
    "signature": "0xa28d0a8b2b62348963c9db88478cfda2842f68a843c48438b9bd5bde5e3f5c3e66c8fc30f10a2262dd01116518f2bf093ae89c22ec86a43d5946b8f131da7b5f1c",
    "signer": "0xF5DBE309527b5E23c7b44a2DA0d874AdcDA732b8",
    "userId": "961733959"
  }
}