{
  "manageEntity": {
    "action": "Update",
    "entityId": "785911517",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera2yvtcfnyxqjeel72e3foiti6lrihxauicl7nya6avltihefxtxua\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1112351107}]}}}",
    "nonce": "0x2f5bddd7912354287fde05dfddf9d6f70d5b2fa5f8b7591513fc344dec18ae00",
    "signature": "0x3624100ac955592c2d8f7146bfad59020019838fbe5373d8de25059b402df8fa64780fbe73ecc12c58749b8fe53d4c9ef3100b20910a65664b65689e130ebd101c",
    "signer": "0x6315751cB1B4678651982CBaEA1493931d57acdE",
    "userId": "785911517"
  }
}