{
  "manageEntity": {
    "action": "Update",
    "entityId": "245414566",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd5e0648a852dbb42ccbcbb2cd9733d878ec8577638e5d65fbf46659af99ae693",
    "signature": "0x99137e30661443575ac4dc1be311bb6b718e1a1fed479754c8580e52647ea03c3cf96e90e79296c5a6edf49d2849bb7543c49ea4b04cc1b6ba3b7aec4e6f1d721b",
    "signer": "0x9F275c9428D777F66aaab794b3A3e453f57eF105",
    "userId": "245414566"
  }
}