{
  "manageEntity": {
    "action": "Update",
    "entityId": "572066471",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe027e060ffa8daabe33100afc2179a5bfe9bb0a13186bcfd8b28febe73e79ed0",
    "signature": "0x0cd94a6c602a3128e2dc07e10662dc0f60722ea289cdcc1e4c99b2c3d8ad271179c2c935a3c4338c87bd787fa4d45a1ac1c0f310b09d045960432aea6c44cef71b",
    "signer": "0x6412dD6C1d4DEc414C66b7993E45569FB3da48D1",
    "userId": "572066471"
  }
}