{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "624519914",
    "entityType": "User",
    "nonce": "0xc10f7d4c56800330f2e8ba2cdf2a06948767390ee9c311d6994d461bdba59062",
    "signature": "0xb9dae1009a7c2d36e45bab6dc916e45f053962ac6f9de262889ab1fefec751ac1bad5d88e1dbd734838ee216010b55b0397732b86d5cbe51148a8893309147a01b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}