{
  "manageEntity": {
    "action": "Update",
    "entityId": "424142613",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8fd7f0c07da990cc18324e2b6ff0dbca168ec041e3a4022bd2b1dd87c676a5eb",
    "signature": "0x288bf2b6c0cec71b45043092c4586f811a58f7c151eecfbf61bf93c7663baf6a43f9a1ff45e713da78cab076cbde6c4203536a477096461e0403a51b4a1c30111c",
    "signer": "0x2205833bD910998b6F99FDbd53F5FBd387134b96",
    "userId": "424142613"
  }
}