{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2595",
    "entityType": "User",
    "nonce": "0x81126f386726641d5137e2635567cfeaf76710d9b54f92c9042d3639ad0d6d8c",
    "signature": "0xf0a94fd6c686c5e838ecbe3fe0a66aea28d8e8d6dabda5ce5163b4854af84b034a068bef9fdf0d0b92b6acb3626fd153128eefe30046a39f9a40a6efc12fb4241b",
    "signer": "0x138B6ac6EcE2bea5eAb147DBdDe9E1a09717a3b3",
    "userId": "736985209"
  }
}