{
  "manageEntity": {
    "action": "Update",
    "entityId": "67144750",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4def2675c3884a844a14d01f3947a9d5dc208806151cb71c10b15ca0854c57f3",
    "signature": "0x11f8c7a34fe994aa7c799783c17d41e21b558434bd76f9219cf4f4c95d448e8a07642e90c84253a119dd4f3d6dea449811f1fa44bf9d9dd509dca350d0baab621c",
    "signer": "0xf987600Dcfa922FAA7E2a89669A71a87275fcab9",
    "userId": "67144750"
  }
}