{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53010",
    "entityType": "User",
    "nonce": "0x71edd4cb6899d4b4495f854694d4403b598fc2ae7f48e306cfc804b4d6e66073",
    "signature": "0xe80dffbd81e47979165d17542ecab73cb91555f50d682aecfd7d72434a848a450420ee0c0a624f4f5a970b5a9353c7b40a2756351d58ca0079fee1c999762e0b1b",
    "signer": "0x18356cfD8fCEF0CfA9c1317D9538cf9f94734021",
    "userId": "855397745"
  }
}