{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1831424",
    "entityType": "User",
    "nonce": "0xb37fc35b82b9cdfd3450e8213b2ff6414a01d600c4bcaf152518e8805a4387b5",
    "signature": "0xabaec74e64a391764e810b4472df76a125a770bb7d52fa576742577255faff652ec97b42c4fde6e809806d1d1eab6d93458b944f0b847e8f4eb56b958513249c1c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}