{
  "manageEntity": {
    "action": "Update",
    "entityId": "427045309",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x372aaf9255741ecdb5542612237245f24b7fb5e8a2e46fec97cc566650cf9d19",
    "signature": "0x04377b49c27040e2a6e8e7cb9df507856bc0ae944ee9c4e0273e973d898fa5137b16503895fd1079f67433a728efc006f9eba4e0fb82a20ff13a51547ccef87c1b",
    "signer": "0x694e30450c1b0693cc7FB530Bce95f6B6193D366",
    "userId": "427045309"
  }
}