{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x44f228369c2bed6ebab95de86753341c8f99ee18329b55fc38fd3abb2b2c8612",
    "signature": "0x4303434bdc3f200ddaf8e6ad992f2ce8f7d861ff84eda144148c00e12bed5c70488a900e72b9b27fedaf99f855ead85ca09a9cdf9507b29777b037638209daff1b",
    "signer": "0x1Df693Ed633B381cB87b6D8C559fB0C7Bf5eB6af",
    "userId": "823447086"
  }
}