{
  "manageEntity": {
    "action": "Update",
    "entityId": "469471331",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierayemeevbccopi6aytg3mu5w37raemcsqxi7wxb4t3je2pcze7g6ja\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":131406}]}}}",
    "nonce": "0x23020d360e244e48897eb808473b1808c373da2f3d2fa7401b156b7340338083",
    "signature": "0x7d7229ab114bac65f5a60b361043babb5a94c88bb36101ae42e8f2dcc166eb7f07269836e0740efddc631ed7a08c256700d9982db3f700e079fb4b75e83559ca1b",
    "signer": "0x9aC298099aB8B4b75959D80fcD4a931c056925dc",
    "userId": "469471331"
  }
}