{
  "manageEntity": {
    "action": "Update",
    "entityId": "897512779",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfd9002678009e15760873e776b6d89852447f1c4527c141a6f9957af56a3088a",
    "signature": "0x81f0098e6f97dbdd71295fc1dfda747963087652eb215f5f1fc60fa364049117315bc7d1796e15168ebba5722fea35a3f73de94de8f40171a5f4bbf3503e37fa1c",
    "signer": "0xDcd7AB2467fbFAb4CEa0deB7C00C86d5D89347cF",
    "userId": "897512779"
  }
}