{
  "manageEntity": {
    "action": "Update",
    "entityId": "154085595",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3898e221300998021ad6faf4a52c624a9e519843a185580728afda97e2ea87b3",
    "signature": "0xbf5dad6bd113d0de7b254460d6e491cb0fe010a45c6765b95294c6c631ec70bc3aee48cb464de17a159d9ab5ff5396a70eb5ca8f0d1cb8925988d795be97e0421c",
    "signer": "0x5b8BFea922d3E94c01D9b58040d1Cb4E8BE244EF",
    "userId": "154085595"
  }
}