{
  "manageEntity": {
    "action": "Update",
    "entityId": "544633459",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x42af7565eff71cb27570c2b21e7575da75c583b8a4a746202bf5c8d4df1dc5fb",
    "signature": "0xef82defcb771ca87fc6858318e81fc3974dadd6b8b68c5d89841dcf0bc8867f94dd979a01ab1362b61656140bb89356df5983ca650be04cccb9a542d6ffa747b1b",
    "signer": "0x3576236e7322E5B2F2bdeC4E6e89725094569eF3",
    "userId": "544633459"
  }
}