{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x13fc9a9a89f28c69216d7cb3285f696e25659c7941721ab8464bd7d04bab629c",
    "signature": "0xdfe25aa0fb8f67182694d2160ac9ad7062dfb9eaedf95d666fa2b8e589641be92d676ec45cc2b980000ecb0b270abbdea0f3ba09326df14cf6507e233cff7e241c",
    "signer": "0xcB2468C7b3ae5003F5cF086840845ACD850b05Cc",
    "userId": "20584910"
  }
}