{
  "manageEntity": {
    "action": "Update",
    "entityId": "810411799",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa93c9460bc11278e6a0772081338b88acc20f941430d121e1f90a41eb60f1b8c",
    "signature": "0xa1a7b0aa79a5104457b5e39d708cee0179e3b4612c8f754e69f09f66ec5768ae19f16c5dfbcbb942467cdbd4b4b0be39d7ba38a821069514da3fa2926a6dd5731c",
    "signer": "0x6aCE4358e2d2fb9C1Bec95a24881B4D8c93125d0",
    "userId": "810411799"
  }
}