{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "363986",
    "entityType": "User",
    "nonce": "0xe21fe910da5b44b9c642630530fd9c48cd4d82a7dbc518e9a1473704463ffd01",
    "signature": "0x75401868f1658f4bbb7d45142a6d18a50346889eeda30c10de672e9d7792450b2760e075e80038590906e6f7bc03d97466c11f777b2c492245650a617924fe201c",
    "signer": "0x2ea4253d582Ed20bA8Ba04a02C6b74B2A5A32D46",
    "userId": "947959373"
  }
}