{
  "manageEntity": {
    "action": "Update",
    "entityId": "776944306",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4f134488c66794a5456a28413ac7598dd74f28075024068a96f9d3ecffefae18",
    "signature": "0xedfb7b549ca32b6e817594d90967c9cd451915503ae821f3d1d160eeaf98593f26b62b262a24d0b446bb5e592fa4c486cca49c84d96dea93d4412fea38dfad2b1c",
    "signer": "0x46F59BEBB575F9629c1B4d48c6A6773A8B2b64A6",
    "userId": "776944306"
  }
}