{
  "manageEntity": {
    "action": "Update",
    "entityId": "557158813",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa33f8963a5ec29584d9d136c751667ddc206dfb4317689a9ff644a35015ba99c",
    "signature": "0x3f526adf2594fba42ae2a3d8297024297595738fb94b79872e8d4a968fe8ac5d252b3b1f2d4d0f09bc862df1575e5354c8881f11890dcbee3703bbd92e8c010d1b",
    "signer": "0xF1fC1d1C5e0Fa2C37eb724f58476fFAff5ADbDdb",
    "userId": "557158813"
  }
}