{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xfdd57f4b3bcb1d0e886e539a41a1e8b46ba037b4a1db9b345b626a58e2db577d",
    "signature": "0xc45c935a3166ff5c43e51e0936728e7c756cc33eed2f8630e2c981c472f9fc465b3317ce87be97cfd3cb6dd695dd60dc5a710e576d6f9fbbce98245c85e61e561c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}