{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1429398",
    "entityType": "User",
    "nonce": "0x12e5e3145462f52ce50146a31e9314c77938251d6f53b1535261bf68f185ffda",
    "signature": "0xdb0f936375e8e5af644b2ae07ff78603f0856dede49da5e377582476c00a267d276af279699510256fc7a2b32ae31bbd10e993e35d0cf2dc0ba1d59e9a8778011b",
    "signer": "0x1F8d00A05AB04Ea8AFEb3B1C72de612c9fF456bD",
    "userId": "780838336"
  }
}