{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0x4b77d9da7382e8c606cf548482bf45fce32d3171d9d4caddab445e2c071ebc2d",
    "signature": "0x7631d45f1ba417e06fddd3ee77d516d3c26ae62eff87cc8e55f7b9281704c8ad211369f95b6b864d2ce63431606fe4c4241379c059794defd4e968b22e5354ec1c",
    "signer": "0x4F8e40E75E675f5be20520c4cEA0CbD7bBb999B1",
    "userId": "991796067"
  }
}