{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7064802f345a96713221335b38143564b97cc515b74f7ae1b6498d5fa902372d",
    "signature": "0x4ff218c4ebf8a64a81be562997ee759b6cd776e45a123b8df71bb6b8126373d66bb39ef7f812dfa1eaf7b6f361a5505f6f967af78658351d6d9ce348ac122f841c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}