{
  "manageEntity": {
    "action": "Update",
    "entityId": "328056745",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1a882781c40feb7772b8128db4d4654e0997ac2e122302f6b9379c5aafa3e0e0",
    "signature": "0x5bda8fe5afc57373b64c9f61b86ee627f207e93ef0db3e7302983b3e13e200b951a99a037cc226f01e31bf6e8c3bef87c0ee8a0b4cd39fea0c495ed3c70377a21c",
    "signer": "0x75d782C5a68f76DfA69c426479B6ad14383D035f",
    "userId": "328056745"
  }
}