{
  "manageEntity": {
    "action": "Update",
    "entityId": "465666777",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x68a3085a2ff9d722a3caa7eebf8e477c7d0d60853e914c84b7a0a65b1edd563e",
    "signature": "0x6ef7f506619e994b6debd86268f9d27d2ec6e9cec059278e83e22c2615b5bedf147c33e5367afe7964d4b55ada70af8240faf7faae553247b84e203e9460d5451c",
    "signer": "0x5cf424b2E500Ce62e5776d2Fef3867BEA5A0b58E",
    "userId": "465666777"
  }
}