{
  "manageEntity": {
    "action": "Update",
    "entityId": "831474008",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4eab3ab1d709dcf3200ff71a4c335bd51563456cd02138ea5379a8452b58598f",
    "signature": "0x1b8b21741c6f571ce401ec6823f0ee52237d410bc37edf6ec306f1dea728c52053ebfee8d4e3d3f966119ede67d4fe4f1a21304b5f70a3c7530a652a4f6377ed1c",
    "signer": "0x250BA5492e75e8e9a4D09C6cDE8D09f1B7dfA3d8",
    "userId": "831474008"
  }
}