{
  "manageEntity": {
    "action": "Update",
    "entityId": "39019636",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xebbde9a62d1d57d9aaf18e0476b223fc029425ba3d8d5472c71bd7c94b36f1dd",
    "signature": "0xefc98cc4839216c74053f345d41f44654b6cc997a4fa59e8662233ca9713029e221660bafde70e8648edb60a44d41f7540c4754dfe2e964889cd47a5e86ec5d61c",
    "signer": "0xA5c14b749B37C8348fC7102F6478FEb0a17a5Fcc",
    "userId": "39019636"
  }
}