{
  "manageEntity": {
    "action": "Update",
    "entityId": "793451567",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x63f8c5effee55cad09547bbbdedc237d6d87b8691604bcb33f117d00af73f15d",
    "signature": "0x6a81bd81296c5e92428540ed3282a9017b9c39594f0fe1f70a1407b3362481dd6671ecd29a01438eaaeb8eacc10951713a74af2437767a272a8f5545ef59e0451b",
    "signer": "0x9BF67aAC36dfbc7ff94F241caD19Fb7C6AaDd059",
    "userId": "793451567"
  }
}