{
  "manageEntity": {
    "action": "Update",
    "entityId": "474911159",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraamcvjcoji67u3wgrtnw6jr47zy4v4kzqedglmdj4pztgypa55k2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1666639012}]}}}",
    "nonce": "0xb9ce092a0b415838265f4799a16a67151c538808074a608e0e81056093656faf",
    "signature": "0xadcd62566f3cb6d8338d242657ee4ae0896592785aa365bc7362021583416a493f81e5d0c8e51b12b8f452d286470d0bb9e80cf2b94dd3a424f869daffe8223c1b",
    "signer": "0xbDC93609e4d7A3F4F0E94b896054486262aF20cB",
    "userId": "474911159"
  }
}