{
  "manageEntity": {
    "action": "Update",
    "entityId": "738670703",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x599ed3aa6654f80d258912636a032e163c3601f141c658ebd81c25fb5c1a2e22",
    "signature": "0x6aa5eb911a395e62569a6ae2b5349e3ca2b17f3753cd1202c77ab6046d195d465760d2dcaf5d3acf65ef3e58124b74f3cbe2652a421ae5e0b8328ba212dc20d61b",
    "signer": "0x69406a3A0DEb4fe60BD4a02F622F3F5C1bDBDc6E",
    "userId": "738670703"
  }
}