{
  "manageEntity": {
    "action": "Update",
    "entityId": "683520717",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3db850aa2d257ef9288084141d2a68f9f7ab5e04a68c4e61c22fb0307307238d",
    "signature": "0x4edc0454140b8e615608df383efd9be4d6755fc4a9c2098896281be7440d2e7b532c708e4f49e7abcdd9865a8c11730a639d911a86b3884147c54ed921c7f8351b",
    "signer": "0x6aCFCBd110fC06969fF1e97fBb89f7eF82398842",
    "userId": "683520717"
  }
}