{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x15a42a8e405c1d00160926255198b33f8d4d6cbef87a24be8c0e3290c34d97ae",
    "signature": "0x06337e83ac01956b8568179238019f8ab909b4efa67176d1a736781d72a8fdff791898bd2d2235ac7296a0fdd200cf727876b821651fd000422c36adab9f6fb91b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}