{
  "manageEntity": {
    "action": "Update",
    "entityId": "949770551",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb64fc56f07a22c3648db20a5fafeba889a8170f65a4794e64b4c400802bd8dd0",
    "signature": "0x4ad2cad3497206ca65fc6405d531d0c00cce73a75c4072b5972813d7ef4db55731b2a68183892b5b7d7c94de4fcdc27d9a4df0aec2d9b53b5178aed2155496471b",
    "signer": "0x1Da43999Ef7aa4B8F9907eaf0C676D5fb1599AFB",
    "userId": "949770551"
  }
}