{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394061",
    "entityType": "User",
    "nonce": "0x42931dbe6c0cff389833c915becbb9886eae9c367856018dbf96a2cefc4656e8",
    "signature": "0xa27c6a7fd8991370bd7946236cd2873a4067ae3e6340b9cb4b82c78e3858afcb65d241dfc591a738573fa81248f153fafe063992c802d39e32b6da30fb3a14b41c",
    "signer": "0x57Ad6E2E3fFc5ABe9b5FE7DC3bF7c07c8cCf9Ccf",
    "userId": "571702334"
  }
}