{
  "manageEntity": {
    "action": "Update",
    "entityId": "383246485",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe8cf8e179c74fc5d68c079cbeb77e9e36e173b014052338c63a6302985a534fb",
    "signature": "0x67613f560eb732ee80c6a109617f86365a9e4b96c1597292644f48c7a0f2dc93129c5db00b7965295dac461867dfa55e6fb8cfd4a099ccc0aede3c4b8cdc6a6b1c",
    "signer": "0x8fE23580516ef5596006BBc1541D2dCab23bCE56",
    "userId": "383246485"
  }
}