{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99654500",
    "entityType": "User",
    "nonce": "0x92d9712060602fdaee7c900dcc7a65e42196e63370d5375d3188129bca0080d4",
    "signature": "0xa7283537bc3fcde74692c30a80437a17bf69e3c549fc4e67063655d270b377b645ef7b809db8995175832b9dc6616ec4249b0fab753ab4288b4b952b0877d1c91c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}