{
  "manageEntity": {
    "action": "Update",
    "entityId": "920432305",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x474692cdea934cf3d7276fbc193dac824b4c27925afbf28ba616322956d07404",
    "signature": "0x8fe53e5e7cc32bdf3164e153638e2875b9f751bed6c60cbccaf98f153241442450299b20aaf1c3faad9daf27e86ec5e139d5b74facfbf860a439717fe3868ad81c",
    "signer": "0x854c4A8686DBF9495A2D65244b72C4A0c30628d9",
    "userId": "920432305"
  }
}