{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294",
    "entityType": "User",
    "nonce": "0x6c4d3f5b8bf7863ff089a582ef892ba7b93491cbad86bbfd576c9f8ab600c7be",
    "signature": "0x3abca4ff76b3fc2c4fa890eb9a2cf59388ac925ffa25a5fe176f681ce378a4271c7e23c3128c4a70f7f3943f537758c522130b31c9c116b1e5c47f9f32db0d941c",
    "signer": "0x18356cfD8fCEF0CfA9c1317D9538cf9f94734021",
    "userId": "855397745"
  }
}