{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x04ae774fa4e358819f81aba38eca24c5907888f9d22dea6c9f05f457b67c4da7",
    "signature": "0x92f5dac6a7c34147490e535d748f9e17c264235c1db29a93969f6b7f083cdfa475251974fcffcc0231b7735542dbe345b9b06b3910480e28822baa23c0f675221b",
    "signer": "0x07D88B6447585F78880146Aa4534A574447C9D3c",
    "userId": "193758733"
  }
}