{
  "manageEntity": {
    "action": "Update",
    "entityId": "366541457",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa1fb7194f835437a28059ff346500fef4450105598e923a786f6d2f167c15885",
    "signature": "0x2a903b12953739e42cf7a602662c64d79b976c78eccb7bbf0d76b1c1c8d3b6fe184763459ef6a69e33019ddb97ffee994529ffbf40a98de58649d0f7af38ccbd1c",
    "signer": "0x11D455388e2C49b5996d93F83aEF88A97008c68d",
    "userId": "366541457"
  }
}