{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "775276681",
    "entityType": "User",
    "nonce": "0xd797e765a08dcd8b16893693aec70a3795f79ab1a419a8e509c6518d104daf67",
    "signature": "0x0c6b4fe393f33b5c8f4629df81b4f3baf0dbe338b779e5e32c81e8bf2c7fbf075830d457449ec93b49de15f93d7dcf9214e4596b75e22b661a54c084c8292bed1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}