{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283478",
    "entityType": "User",
    "nonce": "0x75faa5145fe73289df3347caba13f8fa9a90a64dad3929fe6e7069f46da1572f",
    "signature": "0x356e772fd13cf741ed94037f7974a92f893210e987863beee7ff5f428992fed43f48d160d07276f63b60b028608701863eeae50792d73582db71e77f6c703b671b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}