{
  "manageEntity": {
    "action": "Update",
    "entityId": "163891305",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe095165c7617a136290f0ed96d0d07bb14776768e22d95ff68286d69ae356353",
    "signature": "0xff34992fd0a459e2d8f104fdcdcee81c01e872a1d19f54f08d2f649e11acfdc2593c717a27cbf406e511cd7ca08551c0c40888d8e7873514f88efe2a4ff409a21c",
    "signer": "0x1F33923DF5E9a413767e7322d72824f0278fccFE",
    "userId": "163891305"
  }
}