{
  "manageEntity": {
    "action": "Update",
    "entityId": "318105270",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8e621b45e91519d50772c0959bad8eca020698c0065462fa9077b975f3409ad6",
    "signature": "0xf057f7574017786f76596c514181a16db0484d74e72394c6d2deeb84dce511c40c3e5a94c695a980a6809e9ec33df09be0f556535ab88276194a3697f94ca74b1b",
    "signer": "0x63aa846197bf6d5e49790af17177cdBf8D6bdFFc",
    "userId": "318105270"
  }
}