{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "187015",
    "entityType": "User",
    "nonce": "0x772de3d81bee2325a5319fd105a3bd6c52f352cb0740252dde1e69307937537d",
    "signature": "0xc0fbac757025e4f97493b28e0f5fb555549be6af6e9c63d2b4da53dd40d4a9010e8d1979ef03d342ed445f06495848ed6ffc2af5c60827e3f187c457e726fa541b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}