{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x0d0f761e6a0accd2879a9ec1e09977f20c8e9d3961ae5d5557cc2243aa5e67d9",
    "signature": "0x69623b02dca735189d450919f0885f4e62c85c48901311981083942a2ed0bd7367714072b2ebaae45698117d1b76f5c4845cd1063131ad4d198a3eced9ccf0581c",
    "signer": "0xb81F37e5a07cC28DEe619D298e732a131680DB32",
    "userId": "418741971"
  }
}