{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0x99b1a90f3d953317369096b4bb6c5fdad27fdc252515e95eb21cbda6d604224e",
    "signature": "0xb71d8d77ed8588578e2c5a9a4bf3c507cc1ac7f60139ecf5a6801d1bed706c467908e5c3edf3115669f3085ed1557ba96d6fd9eab2c69d6c19f0d866b4e47e4f1b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}