{
  "manageEntity": {
    "action": "Update",
    "entityId": "918019449",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa0b5915b449f53776a7945afa90dbdece3fea75d73141e1d7685b22d91f9d5a6",
    "signature": "0xf854b34f6967cd84ae0365b207bdbd4ef08e06becc5c972e8598b1f327a948a11764693f048fadc3770215eee18b037d9fa46b4e0e5ae2ecf976b27624352f0e1b",
    "signer": "0x71902B2c11a4EfDe377b4A89a7E2EcFB078581b8",
    "userId": "918019449"
  }
}