{
  "manageEntity": {
    "action": "Update",
    "entityId": "861832117",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf56e1a447c8e7c3aee3341195e67e6980482f54644f17f522f6638d575790b4c",
    "signature": "0xbe77114630370ef13986be7b3917a7147a411256bbe906a8cb7c9e91eb4df7f424b8607e19295dd8553c8d153b7372b681fe37e7617d9123376243780853206f1c",
    "signer": "0xe083C6657964CDF8edDa4A2141B67047B9816C35",
    "userId": "861832117"
  }
}