{
  "manageEntity": {
    "action": "Update",
    "entityId": "392289893",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1464aab79d1f9967dc7c5d9a6598b33d4e7875d72a35c5840fff05867991950a",
    "signature": "0x5020b9da6457ec7cb202c813c0f506795d476028bd3b2390606f3df7ad56251263425eca5cb1b07577c15e49f7026d90e515062bc383f84b66e7a09bfe4aaa8d1b",
    "signer": "0x8bD50Caf0D290982E2705EBe89ED8fDCA620224a",
    "userId": "392289893"
  }
}