{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5c5d378b39f38fb24d5bef8889f9105ad4bdef3302f3040c6d3ec271a784101b",
    "signature": "0x222ff5176f2581a174447ba208cc3eaa36ddfb04797cb74f6c77baf4a698b53d5cdfef27a5186e17fe3804896a7aee5a31e81dd4a5a8aa59ebde2e52fbe49fd91c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}