{
  "manageEntity": {
    "action": "Update",
    "entityId": "560630042",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf99d0c53009bc8da97282105f09013893cfde5e97996251927523a597bc406ac",
    "signature": "0x378279c362f3990809b6b5e1d867d84797f78712c75cd5890668efd72ec777431c5fa4896a6c20314f86aec909c7aa887f7c7a56177bd2230108c3cb43acfc8e1b",
    "signer": "0x0fdbE0966d6f65E3DE225D16D06131c10d4F2b3e",
    "userId": "560630042"
  }
}