{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x1acd4cc139c0fe4bd2a81bff5c017b2cd8c273b52b2278e0f0dd3af6bf6eab38",
    "signature": "0x6d1e1d1024044e46dd2a732e24bfbc5ad72a53748530dc74f6794465bc837fb5613b528112c694b8481d22835da2c21f10a4348b28b25cef46b82a547d4426ad1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}