{
  "manageEntity": {
    "action": "Update",
    "entityId": "659477737",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9772f63209d7d523173abbb48b34f48b8151406c6a8050eca1b132f675add4b3",
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    "signer": "0x078612c67942684EA98B7945955AcB5782034897",
    "userId": "659477737"
  }
}