{
  "manageEntity": {
    "action": "Update",
    "entityId": "266182258",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf57c210402b8b56943537c5b3aeec01231bf50ebd01904ca7ef7d7160fd4830e",
    "signature": "0x8b02cd1c7dd26ac30267a0f006f7cde32be7b272d17a29789a51d7f03e31424041c818412b20ac9cb324d3b151d2a07177d41b3f8c9e525557dfb1cbc7fee11c1c",
    "signer": "0x515E64f3513F6374A2fe259cFCDE4D36146F7D7E",
    "userId": "266182258"
  }
}