{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "903579998",
    "entityType": "User",
    "nonce": "0xc30802aa96603195508461b9a5f294b4b0d9a0919a10897138c02eaa0905649c",
    "signature": "0x2320265d8a13d38922197dbc579a5c6a1ec554e26e2856549eb2927d92fc5ee874614cd7dc8b5f17dbd533dfc68d43f0914e1416bd5518d1e6c6513124acdf941b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}