{
  "manageEntity": {
    "action": "Update",
    "entityId": "622238879",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf2a3c6e97999d9aa578fe82a05537b80bbbd4e6efb875b4ae6048b1e420259c7",
    "signature": "0xd5be0091a3989bf9e946273b630e074411abb3f88bae63e25af6e8e8f390bc906a3e96316d7b734bb73148ecd4a2df5e82b091c0e9bd898dce2b5de32dc6598f1b",
    "signer": "0xA98d1463460E210dE5df0248b43C822350CfF9Db",
    "userId": "622238879"
  }
}