{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381866",
    "entityType": "User",
    "nonce": "0x6b728df341d6c5a448333dffc031678c27954c5e7d3ba936582d9a812f2ec5af",
    "signature": "0x4ae21ad8e77e313c1e44ccf88f6283186e3e9b7d7a538f9bbde3fc70b71b8e4d2a8b8c566724acd580d93b054b85e23acc8dceb3e7dbe47de63ffd186edec05f1c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}