{
  "manageEntity": {
    "action": "Update",
    "entityId": "737351944",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x462af5b0eb407279bd0bf7240a6a712d24d1d1476f6f9c9ba02489f17e8cadec",
    "signature": "0x0d3e8280598b6fc2ea304a0c92171f6921e0a4f7b846adf36a9e48ac297950836693e14de1cda8bf86d170707bab7f114aeb9ae1d558b9c3b600c79dca27353e1b",
    "signer": "0xD3477a5D42f26D7d97a9Ed213CF35Eb998C7b687",
    "userId": "737351944"
  }
}