{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x83dc50193c649955372e10e3da1d73ec7d29767dca6f643fbe75f35adeb7390b",
    "signature": "0x991059e20605947564c979cc7b81e8edcc90b4218c1353456b2f8113fe8c2b6d1cc56cf52cc9c86d6175afd1d452db4c55a6ea524db920050c134490eb8810191c",
    "signer": "0x1EeF7f4505C388ca4a4B9A8fC01FcFa7c805D3c5",
    "userId": "17766667"
  }
}