{
  "manageEntity": {
    "action": "Update",
    "entityId": "534084707",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x44506d238914d864282a415be5a806237690bcfcf4af10516fd0ded2f3d30178",
    "signature": "0x12959b71b0d01722933b9f95eaef455b28b5bd89ee248144a5187005d877f56021a9683d6f0707d5df165b2f5d26a04d6893a4f4ef47836836c38f44e5a6bdd11c",
    "signer": "0xE7e8c0E26856500f9a7B3867f748D0c8b049B89d",
    "userId": "534084707"
  }
}