{
  "manageEntity": {
    "action": "Update",
    "entityId": "686800566",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x58838f58e086f253f9e254067eab7f15592f518742c33a1cdfa55fc4b3bde249",
    "signature": "0xd0a31a9027fb0ef9b724ccd7717da6ac5f690310f8750e3bb9f401932d8c92b04a2c1e8fc79bf390470dc121f6f2cd4c57b703b6c49330ede9347dd6460f3e071c",
    "signer": "0x749357e39911FAb3e69279B682aEb3f00870916E",
    "userId": "686800566"
  }
}