{
  "manageEntity": {
    "action": "Update",
    "entityId": "726314312",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazgs53mrhxw7xmr5cye3rylirlkyodlfhgsc7dn7yjuizlgv7h2ta\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1607942474},{\"type\":\"playlist\",\"playlist_id\":1110658470}]}}}",
    "nonce": "0x25a7cdb81aa6e1d951f1390a37188347c96991896450a449d7a3fec3049a2764",
    "signature": "0xee422d7c42b5cf5f8ed5d005d8defa9c9c48243c095162b6c67d784641b92f2b3f14331f8935cc203803e53093b012a240e1283bb3ab67f748c96375c1bd79421b",
    "signer": "0x10cB9Ce4F77e218CD9Aa08f7571669CEAE89842F",
    "userId": "726314312"
  }
}