{
  "manageEntity": {
    "action": "Update",
    "entityId": "968980964",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8a4158f23706c7ff72afba6af9e4d9bf812ec71616bec964f4f72e2afeeac297",
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    "signer": "0x9dBA7d72dFc340Ebb03DE3F5cc31D6e96A38639A",
    "userId": "968980964"
  }
}