{
  "manageEntity": {
    "action": "Update",
    "entityId": "406716751",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xeb7f647456d06c0bdfba86106962342a5b20b29062a52fb4f56bc88512da5e02",
    "signature": "0x52a63fdd03a9696e441b63baf7a18b39f1fefbffe1c049bad705bf3d6c1819103d446cd4ee3732d79c300b4318b1954fe47e59885eb98125caf284a16a34f8b81b",
    "signer": "0x31eba27Ca105bABB3B8590b9A71b07C6d1e7c747",
    "userId": "406716751"
  }
}