{
  "manageEntity": {
    "action": "Update",
    "entityId": "586542520",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera6snni7rtw4dn447oduwe2tyxlfhfhdezrj2bgh3w4ygxfknlr6ea\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":333610168}]}}}",
    "nonce": "0xdf55a82f89898853b1387eda3e1e5bef34cedc6269b465cc72127dcf95666f0e",
    "signature": "0xd644052b14754dbf80e33a4028be93ef5c39bd52715a330dbfc50a89b928bf2e733dca7b84971682de22b2ab3dac056035b854b01c50c772d3aa77a046449be11b",
    "signer": "0x358A9c732C8F170b3fF6E17798c3e3AA2DFeAdAD",
    "userId": "586542520"
  }
}