{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "856473940",
    "entityType": "User",
    "nonce": "0xc6e97b358641f7f15a19374e2bdc787d4d030dbd9e187fbd962c86ac4c107b61",
    "signature": "0x6998cf1903c0fefea1b9c737454e9a88a2d23fae472145549458232745d0f1b25f09a6221987f5f99bfd8c3fed2a2d51637f01260e7997c7b9b5fe1c457c7a3e1c",
    "signer": "0xac9398fE3324BB093c993C791Db4a36624f5a248",
    "userId": "223946715"
  }
}