{
  "manageEntity": {
    "action": "Update",
    "entityId": "305887580",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb59080631f22c48ff39b60ec9d4d2876b2f83cb66cfeb42490b2dc55c5d47ce4",
    "signature": "0xb46c11a6920783cccebf3090d4382a31e966ad6d731a89f4ff77759585da942533d4bd138c9b8a822ac321cdaf6b281eb45d794f2e1ee9cd34a14d5bff18f47d1c",
    "signer": "0xC4D477a19a7CFF9D89Ae357CCcCfc56E0081a7Fd",
    "userId": "305887580"
  }
}