{
  "manageEntity": {
    "action": "Update",
    "entityId": "443451991",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x11f3eb42bb2a0a90379d56b5b660d06aa405c8b5c7ec24dd952119d3efec89b1",
    "signature": "0x58f52180584d50c5c96f3db1943b400e00edbf9aa02cb93cd60fab850dfd2ff63d79aa84300b570784c097e01bb5a571b0a9a0ffa1c55cc3213d310b7a154ca11c",
    "signer": "0x6B88A2F8d5DBB771e20eF1424DaC7fbB99937eA0",
    "userId": "443451991"
  }
}