{
  "manageEntity": {
    "action": "Update",
    "entityId": "775721065",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb73ec7182fe42121efb64be7345cc469b7501ff90a6acaa381642d1c7a3a139e",
    "signature": "0xbd01d68c437aef55e8c8945096b802c466ff7850a3466a8260f2ac0133870cce5403406403a5d2d3eae4487205e7fb000ecf31a1e072a7ba178cf9456e7094f71c",
    "signer": "0x2f306C8e90c947e1707fD157CFeB4dd73b522D90",
    "userId": "775721065"
  }
}