{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13501",
    "entityType": "User",
    "nonce": "0x9ba56c2e5bb7c761cfbf6e0ea4529c6df88ea5ca514a88ab2854ccf9ac2833c3",
    "signature": "0x5f78277687e25032be9d6791394c95bb8b4a7235b5a4fda1589979135c4ed2234caa5ade5dfcea4a508ffbb13bd89dd3fc74870ae6cbd7e213d1dd2c96af8c651b",
    "signer": "0x06Ad5789cE045C5B0AeB97849051a7385CA95B4a",
    "userId": "270209897"
  }
}