{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1791539",
    "entityType": "User",
    "nonce": "0xd681e2535d93f323e2c83d3a1028c94f54b0d878e0317278c79d5cc7a1daceae",
    "signature": "0x5c583c5bec258b1079243c38e06af7394fec8c5fda4ed7dc5254e209b1b22d88173463ed5a8588c81135a968418770e66ef6c08713e2c564777a5a647b795bde1c",
    "signer": "0x9B90A5c34B6571d742aBcD603a49eF5523684826",
    "userId": "998764026"
  }
}