{
  "manageEntity": {
    "action": "Update",
    "entityId": "406716751",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x93d38b9009f9123799e24b3fab1e4c7c0756e8c96a84fd5362c7f5351bbef971",
    "signature": "0x8b119ae7e02b3a6a399e2ff430007f989c1bbc59ecf897fdcc010c6e33683e1c556365e366ef006cf0b96e3baf91caeb2d6a705b2de361ae9d43db7e20dd04641c",
    "signer": "0x31eba27Ca105bABB3B8590b9A71b07C6d1e7c747",
    "userId": "406716751"
  }
}