{
  "manageEntity": {
    "action": "Update",
    "entityId": "30169752",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x552a99a7c4faf956bafbd4400d4623ab6d76b1b285b60803293ef033cb6f1f65",
    "signature": "0x6524d758e555dfc90ebf2ca7fc7cd936f126c5c04cbaeae5a92c76ccfcfb3ac70be3a8c548a27f5a2ca4932b66413af549620a5b4b1c1ca1f8584a9c569c58901b",
    "signer": "0xA23626aAe051e6B50D4F61dA8F5d0B222868C9aE",
    "userId": "30169752"
  }
}