{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301637",
    "entityType": "User",
    "nonce": "0x6e1e911aa1c6fec08f5c718c83f1cfe64a6843a3e33c390fc87761853d4f6193",
    "signature": "0x4fd98c724bc22c95453a24bc5a7f6d17d30d2c3aea241feaac3fb9d95ddedc030557167a03917f8398660b70f293c169dfbf9fda2753d3879487996054c2deba1b",
    "signer": "0xc8c4f61F41Ee9F540C9b6b684D16ef071F16789B",
    "userId": "828368024"
  }
}