{
  "manageEntity": {
    "action": "Update",
    "entityId": "886744869",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa09f13787bb0a09a1bb55845443d55cd585622e1431e39ac18b72490dfe018b8",
    "signature": "0xfef9b8f659c24c317790bc6f756f3a4e058b256f7d5e41aace5b25d87856052f1ad4a65f1bcda5e4464821699e2b78a7690215d63388472f9e164a9378b09b6a1c",
    "signer": "0xA25aAd0206917611edC6Fbdd1632e805d998f1FF",
    "userId": "886744869"
  }
}