{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297394",
    "entityType": "User",
    "nonce": "0xee9ea8bbe776fcd3d42f447d0b4758a668edd0aeae8873704617b6c97bf05c3b",
    "signature": "0xe67f34b8ec22252fc3387cd04e19161b2a1a85b75488823a24d890eda55d5ef234c51da17ff86c2e8c9a51541aa5c37d77e55785e9875f5cf8a1139309305e851b",
    "signer": "0x0387130B850ded16cD99dd16ca2060EC33FAc85A",
    "userId": "340102"
  }
}