{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216784",
    "entityType": "User",
    "nonce": "0xb33ed9e6c9e457720c173fa579fe0f8629d4af31efe171172ccdbf9b8c1c2d22",
    "signature": "0xdc2eac6ff03d1396693c490fc9ca4d301ece359999968bcf515dfa1d1a9be8b1556af46dd6585ca0f897e7e5135afa968ab5df195cf14e70f0302ab635d5c7a71c",
    "signer": "0x7951f176B5389b0d3a6822d7e0F9286feA14ee7a",
    "userId": "867251596"
  }
}