{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51425",
    "entityType": "User",
    "nonce": "0x595201eae6e1f1741e74660cabbe523374ca8023cef3963554d695b71c02f3c4",
    "signature": "0xf563056087518461ed85464cd1757433915b3740162e49ff1f6c5070a620e88c130863884ecaaf1dce7536b833dcad0312e5e84bd195c2501eba3dd576e0b5701c",
    "signer": "0x42cB1e20D724BD902Af64cd85c700BE6118500bD",
    "userId": "47154652"
  }
}