{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "389234186",
    "entityType": "User",
    "nonce": "0xfb730041cbe2e9269bc6eae6ccb69d5a2efe2217bb6134f391e2f4f9c992e42d",
    "signature": "0x147a2139b33272e865f1b1294a6bb372959ff82d0dddc4e5ab9333baea73358e0763c118c61104cea084ef74ae21e40976d23eabe598fb5349a0af57cc5be7bb1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}