{
  "manageEntity": {
    "action": "Update",
    "entityId": "785201",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x10b2bde011135733549d7645f6e05b4626aa7492c81fb6d3d0c07e3f0f1ae7ba",
    "signature": "0x95ecf8e9f95bb48e111603b07b4521006b920547a2e73824568777a0ca372b035b2b43e667d4f169a82fe5b7c32a292eac94870345978350045cb287d1f6a1a91c",
    "signer": "0x7C3854df2708D5dc9d22bA310Bc0f73C074f0321",
    "userId": "785201"
  }
}