{
  "manageEntity": {
    "action": "Update",
    "entityId": "743206207",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbbfcb9b22d355b6efcdf19c894146fe6209a4b16c05feac69e0fd17323920566",
    "signature": "0x109ea1da3b6929109ea7207288d8f1bcbe46c9769cba7cc65e7827b2b1ccedd37785aa286ceda02bccd6d122ecf4cf51f8b1d120deeec21fd91aa816d37734631c",
    "signer": "0xa2ecEAAb74B2f9a94c5C470449fd6E64c121cB7F",
    "userId": "743206207"
  }
}