{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "711459379",
    "entityType": "User",
    "nonce": "0xe391c853cbabc9df67e1891b9099ec87e7a4dbb112698e57c99b565d016d1c57",
    "signature": "0x41ba772e57a5d43b06115f01d3fbb5828560dab3d8fbc727159db60ac846d2ae05206b6f407c0afebe553d62a8a764b64a17683560daea13b8d6ac3ad07e12971c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}