{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995293503",
    "entityType": "User",
    "nonce": "0x6c461312010fa36a4fcf3abd08093c70473be02d45c5f16af514352d55e2febd",
    "signature": "0x55eae37317fd149e89d7c9040b89f39bba5682d82da09faccab6789fd3459b8e477bb3f42cdb85417cc2ded89348e2fd5fa8c5b226a2d7d33c65a4fd4b9054f41b",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}