{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xe19dbc660b8e9f0241b6785040ec63d9687a8b95cbc821d59ed2564e4f3f779d",
    "signature": "0x91f27cb7f07c1d52939e603ecc704b9a1f23eba023ab91586b72e38f442b620d7a94a49b44e21e71e82758f9f78b614a14d492b09460d3d21cd42b139d0eaa7a1b",
    "signer": "0xA73F93c985634554D9cee80917bbDA2E3Cd75173",
    "userId": "695717318"
  }
}