{
  "manageEntity": {
    "action": "Update",
    "entityId": "650710289",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraepxfp77pk6mfnxuvqwbazxutfblievirsu6n5iukjrktkumowswq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1636386538}]}}}",
    "nonce": "0x6f375bb5e27f74abb5fb74e949075b531a9958cc7c97f4419faec69b3ea16a90",
    "signature": "0xc3ef2a60afc9d59cd305ca5a54961ac065417422432ab223481bf9f67478563b0d8dd1aee4957844f8f80c983d2cd98394580f3a954ad1077edc6d7b8c94160a1c",
    "signer": "0xA76bb874Ea465ed9b8201008c0Dab4F17b244752",
    "userId": "650710289"
  }
}