{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x9da34ab58ad59411ae75073eee0cdf97dd271fb1f2928c15d46887144d3a57a6",
    "signature": "0xd3f2680d01ef260a5cba8a21cdf1fb2f6647363f5f51d5351bc2878616f9d2fb7665873066dfe3180c85128eb20b72ad3c5a1e851e65247af019674acac0ebb01c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}