{
  "manageEntity": {
    "action": "Update",
    "entityId": "217543046",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9b30d188bb877ccf0b31734bb20d5c74788e59fd6ceccbdf2889badbf481f161",
    "signature": "0x774700a6dbc7fcedd4d90e9507c064f15500ae927c98478c53a4a609ae9602f56daf86b7f2450dbcbacdc1385a903c3919bfee17d0fff6a457b9f8e1ec42f0851b",
    "signer": "0xa8472e7A84888420F60141d2c087f40df4228C81",
    "userId": "217543046"
  }
}