{
  "manageEntity": {
    "action": "Update",
    "entityId": "840867370",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x828b1b5674a745ab29490786de862bfe1349cb81a8a839aefcec92f39cb6efe1",
    "signature": "0xd1f4b1b40d1641a82d296aa33e6485d8bdea0562224977a222b5785969458e0760904169ce2702634e3759c1d3753c64daa540b206b7a1fcc2d224a2780e09431c",
    "signer": "0xdAaDca0d5fbaf7232D7865F69601e241da465e01",
    "userId": "840867370"
  }
}