{
  "manageEntity": {
    "action": "Update",
    "entityId": "104017651",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb406d04b9efbd8212b72e8bae7ea7488b9f44bd26696183e8c47800f958b5275",
    "signature": "0x1d3ad28a72bcec02d301a0e1aecccab97fd27ae3d6506a4bdaba6945593e7eb477f87f0d36b791581169c0c564838a20ef1b59501b961d9dda73bd1c20a3d4271b",
    "signer": "0xaF500afaae73bdfad2Ac2b85e59D6C64dedF1FD9",
    "userId": "104017651"
  }
}