{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x230c34f4a10209f93966de19bc33166b233ee6f2550a69cd9f3bcc1ffb1fb5f7",
    "signature": "0xb5d148846cdfa0b49173456e51f49f022bcf5871049e16905060609aecae2e8449627efb9ea3393cb954280364a208ce0bac05714510ed062f526f419c9a54d81b",
    "signer": "0xd90E65fE7E76f465aE3D79ff04ad0Addfb9475a4",
    "userId": "14958316"
  }
}