{
  "manageEntity": {
    "action": "Update",
    "entityId": "383376170",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfad85f6a2eefd7b9b3f63a05e8cf267d02e828647dffb892597fa26311b1ef60",
    "signature": "0xd1cdf2c92f614e650fdcaa750aa19c5aa31121f364c1b2aed7b686854c3eebbe62d9ffb1101658a74841eb8b8e2677bdbcf56439b3ace42ec01580589d42feaf1b",
    "signer": "0x9aE7aBbA237D5183082f4F621E093A36D4752687",
    "userId": "383376170"
  }
}