{
  "manageEntity": {
    "action": "Update",
    "entityId": "750264486",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc622c85d60f251fcc0552d97b0339e9fd08b665a55cabca62f364e1df1d26dbf",
    "signature": "0xd0e52b16257a7904a1ce95996c986279764f9ed747addebb2140125ee343e0ed1db1cc10c33c5fd764cfb937a15734f79c6bdf7fa121bdd1f9d12a4b7650f0501c",
    "signer": "0x372CA9a461c924D58112Ce408A2D849f803cf710",
    "userId": "750264486"
  }
}