{
  "manageEntity": {
    "action": "Update",
    "entityId": "213018068",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x322c96f64c66289ca04e1148a4d47e0ee9b73dbb7f2d326ef4f78a09b6616730",
    "signature": "0x495ccfffd3f05c57698277a365ccdc81235d0ec9bc393735031df84c6f6ece030362c94ec5673e7444cd388284975a6b5e2be8fe6a4a11d7fc0e77808d4b9d611b",
    "signer": "0xAC41057ec14D7A0f8CbF9F84C7fE65CfcF673CaF",
    "userId": "213018068"
  }
}