{
  "manageEntity": {
    "action": "Update",
    "entityId": "928055827",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3191a961407fbaa89858ab2f9bffe2798a298135d49888f5df21be357e0583ad",
    "signature": "0x3739faa12cc9184024235ce8681bcd5fd2548a9aacb444db69d003919a5dd59c700c2e23cac51ab61b59c384b09b3d3ec494414b74ebfebfb6b096c898cbbea11b",
    "signer": "0x7A83A37Dcb69154ca9B6dDe71F1E0Bf5ff316862",
    "userId": "928055827"
  }
}