{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73280029",
    "entityType": "User",
    "nonce": "0xfb5163848c9bac2c0ff6f90122d26275aae3b383ab9db8af86b3122d847535cb",
    "signature": "0x6b4dbf5717802625595ded5650dfed9a3cd8385ad52fcbe792bd768df9f92b3702c8bd401ffe1bed867be40f2cd645a00320216e464856194edc7317dc0f1e321c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}