{
  "manageEntity": {
    "action": "Update",
    "entityId": "523587711",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb45c5fb33b487c36ab6ebe2844a05b8b4d230fda12396a6beca667ffa88df0ef",
    "signature": "0x64393d9f4796d6fb90b008e7d5d0a3b6c02c7692fdedeb6206e927cb8c143bc36c1ecbd5c192f1930710cdfe2169e39cf884d37ab4c42b3042b0a20b75176bb31c",
    "signer": "0xA14B64D3261b0a108e14d3B8f5a9bE4712549c4F",
    "userId": "523587711"
  }
}