{
  "manageEntity": {
    "action": "Update",
    "entityId": "887741865",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0d7ed0c9748d1e5dcc7df163fa03cf26bacc4fc6c258c83a6ecd0aa85be82d45",
    "signature": "0x752bfaa7b6e56580129086b8b30abed83b0673a4662c6732870289cb8fd328253a86a7fa04026342a8faf9113a03cd330bf5eb8a52c4364eac6b4e6032786ab11b",
    "signer": "0x2230770EC85946F97685aDECD4b734f51662F050",
    "userId": "887741865"
  }
}