{
  "manageEntity": {
    "action": "Update",
    "entityId": "727950503",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraykpnqhqxk6xrenqlvsck4jswjllzhn33oriiibfmf4eckiysapqa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":7751}]}}}",
    "nonce": "0x99280d66f96c15eaa987844517b107883641ef25c60b02db572733b08c834f8e",
    "signature": "0xc1e1bcadd47f5c879b6578a5f94ef39588948ccc4023d834b70036cbb1fc77810ef5824a154dd95d1f3725be2e8fe6de94171d59295636b74937323ff6daf6411b",
    "signer": "0x7Dc5480547abF67B7926d1c24AaB5d7BE7e0c965",
    "userId": "727950503"
  }
}