{
  "manageEntity": {
    "action": "Update",
    "entityId": "953219535",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8b60ee4d9b98c6ff1b84150d92962d951548df6b9d29f6f64ca6a8cd154a7363",
    "signature": "0x7663ad61027082978ac18a8e03b41f07993506def12247db54403c6120e4337876f6c5a25fb69efe5b4636426a21874a4b570f06345b5118e2db9b11a443ae721b",
    "signer": "0x165ac7dD4D63a6A37cBa24549d0c710442e9b68b",
    "userId": "953219535"
  }
}