{
  "manageEntity": {
    "action": "Update",
    "entityId": "887741865",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x2e9edd8f9c3805b57c676f408afb054a572a6bb0bffabb004c2eb8db0f5218a1",
    "signature": "0xf8ef92732f8a3f33487fd60563374fe7f3549bab9430d8a89b483cf80fd987b246a2b7ef2b93516534319dd2640a8280d17546c10009cd3505714964b85835ef1c",
    "signer": "0x2230770EC85946F97685aDECD4b734f51662F050",
    "userId": "887741865"
  }
}