{
  "manageEntity": {
    "action": "Update",
    "entityId": "188098399",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6876522a2d4690a2185e75f93c6190dd02ea51649d68d34a8b7f2d521f8453ac",
    "signature": "0x042d7ff6dcd637463af780c1d314405e08234a92df43cdb071bf8290659affbc1171f5bad109f6f4e80a8ed6e853d13d876c76d2b9c323470ca26a1900e28da91c",
    "signer": "0x083967CE65892E2412eB130A9D9faB3170832AAe",
    "userId": "188098399"
  }
}