{
  "manageEntity": {
    "action": "Update",
    "entityId": "159597058",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieratk7kjeb34gfjx6qbytahmxnacojaw53hkcexycfczyf6elhw7flq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":684074294}]}}}",
    "nonce": "0x6ad72e3d13ea0ade54c7b416ae24840dca75d67d799f3c29009d27b03b6e8cd9",
    "signature": "0xecd0d1150e573428fd3466b464cad6635e2ee98e07f2d9706ab2a96bcc4ab46a659a4cb44c63a1c86df8acb3e0b14b57b9a73f35411a3634c3f6f9e26181d9931c",
    "signer": "0xab97052A857D6227f6165BAc2708432a46C287fB",
    "userId": "159597058"
  }
}