{
  "manageEntity": {
    "action": "Update",
    "entityId": "605573660",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x07da586287735feb578278b844c24e99f77a0b1a6cf4738ca44aab0c639bde44",
    "signature": "0xa47b871eda5c488cbe7ed669083661a57e04aefca67bc75c513d14062058fe88073ed4216c3c93313b297591e6d26eb7491852823073663a0e40ec9b55b736921b",
    "signer": "0xa9fe1c9E5623FA85000577B1dC63d64D5b81Dd57",
    "userId": "605573660"
  }
}