{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf6765ce56a9fc50d44919a5d3b0e8b9f6952251cbbad4f4e61888257bbc3186b",
    "signature": "0x25ac11f1ae3aa5f0b87da8c230981e53865a91cd5efacfb32bf216ede6003e367df0fc9732610c1ee230607fa32f4473d240a35fa9105415c2eddf6a2754c5d21b",
    "signer": "0x2F18Dd2cEA7B346F7F93De98489bCbD4c5fc3Eda",
    "userId": "810791021"
  }
}