{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "109779",
    "entityType": "User",
    "nonce": "0xa513eb06fbca6d81ea489bdd6c5ca52ce7170c98a2eb6e90bba7545a55e8ed9c",
    "signature": "0xf141df82c211bb9a8ab55f5af6fcbda13917f6209a87b84d9045ab7c832ee1bb2e0088346046aa872b69b9d815147e5037e911af1750809a3c221a95fbfc44101c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}