{
  "manageEntity": {
    "action": "Update",
    "entityId": "609668942",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x49282175dff66a415b67ebff80e76a2505f40d8fea4e3f7a707753745d8a2f8d",
    "signature": "0x772eaed423f31de03a6d72bf74bc9277b4f1196b941b28a033b932515dff84e63090959f7c62a606d403407531ff6aded9e2a9f731fcfa16a75a480dec1e8f871c",
    "signer": "0x35c0f75c76D1F4E703C99c03b1b7CE133166E883",
    "userId": "609668942"
  }
}