{
  "manageEntity": {
    "action": "Update",
    "entityId": "331355657",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierass73rwkq5hn55jwqrc4d6yfra3uhqakb7hel25f3o7blovavcdnq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1385523256}]}}}",
    "nonce": "0x24bf78a4fc56a530f6380366f0f21ab705b21d1e8efe98602901a4efef5623d3",
    "signature": "0x250a201c9385e981d550600a62b211735a50483d1900dc9292d25b9e917d06d57ade341b2ef2ddc7f614503b5da2402f2124fe3725b7d80ff8cc1284659c8f211b",
    "signer": "0xb7993ED9e4981CCf418330EbDB7f66c3AEFC87C2",
    "userId": "331355657"
  }
}