{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xba6bcdce714d81750c2b3be163d529e045f3fb858a46213af797b6def525b229",
    "signature": "0xf7abdab77b396914e4f3b2b8acdd6b8265146deef80d64d53a4278fa3890bdc6318b097aab178ce1951fd185f335890d0aa164d2488a1b6cd3abeb1479a3fda91c",
    "signer": "0x81b1B45A33ac76924D6f674Fc7d0918AC3E9F9Ec",
    "userId": "845684964"
  }
}