{
  "manageEntity": {
    "action": "Update",
    "entityId": "900057687",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabhjvvm2ksw7why6m3inkbadlftshiee5qiyemd4stfspquzeudrq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1795117483},{\"type\":\"playlist\",\"playlist_id\":863511470}]}}}",
    "nonce": "0xf6ee049b8fcc9be3ea61e0db7931e6a58c87a0af3dc49348535eb26850489385",
    "signature": "0x6080b470934b24ea56843289529ffc99fe1128d8410d91e03d9c66bbe0dd460b5cc9725cda815a12bb15e97bbfcb873deb0bba797e59d7148f075d45485d2ff01b",
    "signer": "0x61dBa7595A973b4e5dFDf3d692FADa360d015640",
    "userId": "900057687"
  }
}